51150736 has 120 divisors (see below), whose sum is σ = 131449920. Its totient is φ = 18724608.

The previous prime is 51150733. The next prime is 51150769. The reversal of 51150736 is 63705115.

51150736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (51150733) 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 23 ways as a sum of consecutive naturals, for example, 1189531 + ... + 1189573.

It is an arithmetic number, because the mean of its divisors is an integer number (1095416).

Almost surely, 2^51150736 is an apocalyptic number.

51150736 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 51150736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65724960).

51150736 is an abundant number, since it is smaller than the sum of its proper divisors (80299184).

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

51150736 is a wasteful number, since it uses less digits than its factorization.

51150736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 51150736 is about 7151.9742728844. The cubic root of 51150736 is about 371.2079730377.

The spelling of 51150736 in words is "fifty-one million, one hundred fifty thousand, seven hundred thirty-six".