56736778 has 8 divisors (see below), whose sum is σ = 97263072. Its totient is φ = 24315756.

The previous prime is 56736761. The next prime is 56736781. The reversal of 56736778 is 87763765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2026300 + ... + 2026327.

It is an arithmetic number, because the mean of its divisors is an integer number (12157884).

Almost surely, 2^56736778 is an apocalyptic number.

56736778 is a deficient number, since it is larger than the sum of its proper divisors (40526294).

56736778 is a wasteful number, since it uses less digits than its factorization.

56736778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052636.

The product of its digits is 1481760, while the sum is 49.

The square root of 56736778 is about 7532.3819605753. The cubic root of 56736778 is about 384.2567952831.

The spelling of 56736778 in words is "fifty-six million, seven hundred thirty-six thousand, seven hundred seventy-eight".