51056028 has 24 divisors (see below), whose sum is σ = 132367760. Its totient is φ = 17018640.

The previous prime is 51056023. The next prime is 51056051. The reversal of 51056028 is 82065015.

51056028 is a `hidden beast` number, since 51 + 0 + 5 + 602 + 8 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 51055992 and 51056010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51056023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236263 + ... + 236478.

Almost surely, 2^51056028 is an apocalyptic number.

It is an amenable number.

51056028 is an abundant number, since it is smaller than the sum of its proper divisors (81311732).

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

51056028 is a wasteful number, since it uses less digits than its factorization.

51056028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472754 (or 472746 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 51056028 is about 7145.3500963914. The cubic root of 51056028 is about 370.9787284709.

It can be divided in two parts, 5105602 and 8, that added together give a triangular number (5105610 = T₃₁₉₅).

The spelling of 51056028 in words is "fifty-one million, fifty-six thousand, twenty-eight".