56780288 has 20 divisors (see below), whose sum is σ = 113450700. Its totient is φ = 28389888.

The previous prime is 56780287. The next prime is 56780293. The reversal of 56780288 is 88208765.

It is a super-2 number, since 2×56780288² = 6448002210725888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56780287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54938 + ... + 55961.

It is an arithmetic number, because the mean of its divisors is an integer number (5672535).

Almost surely, 2^56780288 is an apocalyptic number.

It is an amenable number.

56780288 is a deficient number, since it is larger than the sum of its proper divisors (56670412).

56780288 is an equidigital number, since it uses as much as digits as its factorization.

56780288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110917 (or 110901 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 56780288 is about 7535.2696036705. The cubic root of 56780288 is about 384.3549957906.

The spelling of 56780288 in words is "fifty-six million, seven hundred eighty thousand, two hundred eighty-eight".