56781038 has 4 divisors (see below), whose sum is σ = 85171560. Its totient is φ = 28390518.

The previous prime is 56781019. The next prime is 56781059. The reversal of 56781038 is 83018765.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 56780992 and 56781010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14195258 + ... + 14195261.

It is an arithmetic number, because the mean of its divisors is an integer number (21292890).

Almost surely, 2^56781038 is an apocalyptic number.

56781038 is a deficient number, since it is larger than the sum of its proper divisors (28390522).

56781038 is a wasteful number, since it uses less digits than its factorization.

56781038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28390521.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 56781038 is about 7535.3193694760. The cubic root of 56781038 is about 384.3566880738.

The spelling of 56781038 in words is "fifty-six million, seven hundred eighty-one thousand, thirty-eight".