56903040 has 256 divisors, whose sum is σ = 209304000. Its totient is φ = 14598144.

The previous prime is 56903009. The next prime is 56903051. The reversal of 56903040 is 4030965.

It is a happy number.

It is a super-2 number, since 2×56903040² = 6475911922483200, which contains 22 as substring.

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 = 56902995 and 56903013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639316 + ... + 639404.

Almost surely, 2^56903040 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 56903040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104652000).

56903040 is an abundant number, since it is smaller than the sum of its proper divisors (152400960).

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

56903040 is a wasteful number, since it uses less digits than its factorization.

56903040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 56903040 is about 7543.4103693224. The cubic root of 56903040 is about 384.6317725120.

The spelling of 56903040 in words is "fifty-six million, nine hundred three thousand, forty".