56380778 has 4 divisors (see below), whose sum is σ = 84571170. Its totient is φ = 28190388.

The previous prime is 56380769. The next prime is 56380801. The reversal of 56380778 is 87708365.

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

It can be written as a sum of positive squares in only one way, i.e., 55547209 + 833569 = 7453^2 + 913^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14095193 + ... + 14095196.

Almost surely, 2^56380778 is an apocalyptic number.

56380778 is a deficient number, since it is larger than the sum of its proper divisors (28190392).

56380778 is a wasteful number, since it uses less digits than its factorization.

56380778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28190391.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 56380778 is about 7508.7134716941. The cubic root of 56380778 is about 383.4514238985.

The spelling of 56380778 in words is "fifty-six million, three hundred eighty thousand, seven hundred seventy-eight".