51465150 has 144 divisors (see below), whose sum is σ = 155467728. Its totient is φ = 12096000.

The previous prime is 51465143. The next prime is 51465199. The reversal of 51465150 is 5156415.

It is a happy number.

51465150 is a `hidden beast` number, since 5 + 1 + 4 + 651 + 5 + 0 = 666.

It is a super-4 number, since 4×51465150⁴ (a number of 32 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 183010 + ... + 183290.

It is an arithmetic number, because the mean of its divisors is an integer number (1079637).

Almost surely, 2^51465150 is an apocalyptic number.

51465150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51465150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77733864).

51465150 is an abundant number, since it is smaller than the sum of its proper divisors (104002578).

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

51465150 is a wasteful number, since it uses less digits than its factorization.

51465150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 51465150 is about 7173.9215217341. The cubic root of 51465150 is about 371.9670019291.

It can be divided in two parts, 51465 and 150, that added together give a palindrome (51615).

The spelling of 51465150 in words is "fifty-one million, four hundred sixty-five thousand, one hundred fifty".