51097536 has 336 divisors, whose sum is σ = 190195200. Its totient is φ = 12773376.

The previous prime is 51097531. The next prime is 51097573. The reversal of 51097536 is 63579015.

It is a happy number.

51097536 is a `hidden beast` number, since 510 + 97 + 53 + 6 = 666.

51097536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (336).

It is a super-2 number, since 2×51097536² = 5221916370542592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51097536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51097531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1761970 + ... + 1761998.

Almost surely, 2^51097536 is an apocalyptic number.

51097536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51097536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95097600).

51097536 is an abundant number, since it is smaller than the sum of its proper divisors (139097664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51097536 is a wasteful number, since it uses less digits than its factorization.

51097536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 51097536 is about 7148.2540525642. The cubic root of 51097536 is about 371.0792351403.

The spelling of 51097536 in words is "fifty-one million, ninety-seven thousand, five hundred thirty-six".