51152256 has 192 divisors, whose sum is σ = 163220400. Its totient is φ = 15759360.

The previous prime is 51152251. The next prime is 51152273. The reversal of 51152256 is 65225115.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51152251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1247596 + ... + 1247636.

Almost surely, 2^51152256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51152256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81610200).

51152256 is an abundant number, since it is smaller than the sum of its proper divisors (112068144).

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

51152256 is a wasteful number, since it uses less digits than its factorization.

51152256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 65 counting only the distinct ones).

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

The square root of 51152256 is about 7152.0805364593. The cubic root of 51152256 is about 371.2116499515.

The spelling of 51152256 in words is "fifty-one million, one hundred fifty-two thousand, two hundred fifty-six".