56751638 has 16 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 27402600.

The previous prime is 56751619. The next prime is 56751641. The reversal of 56751638 is 83615765.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56751595 and 56751604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51473 + ... + 52563.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^56751638 is an apocalyptic number.

56751638 is a deficient number, since it is larger than the sum of its proper divisors (31307242).

56751638 is a wasteful number, since it uses less digits than its factorization.

56751638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its digits is 151200, while the sum is 41.

The square root of 56751638 is about 7533.3683037536. The cubic root of 56751638 is about 384.2903394129.

The spelling of 56751638 in words is "fifty-six million, seven hundred fifty-one thousand, six hundred thirty-eight".