56777078 has 4 divisors (see below), whose sum is σ = 85165620. Its totient is φ = 28388538.

The previous prime is 56777051. The next prime is 56777101. The reversal of 56777078 is 87077765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87077765 = 5 ⋅17415553.

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, 14194268 + ... + 14194271.

It is an arithmetic number, because the mean of its divisors is an integer number (21291405).

Almost surely, 2^56777078 is an apocalyptic number.

56777078 is a deficient number, since it is larger than the sum of its proper divisors (28388542).

56777078 is a wasteful number, since it uses less digits than its factorization.

56777078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28388541.

The product of its (nonzero) digits is 576240, while the sum is 47.

The square root of 56777078 is about 7535.0566023090. The cubic root of 56777078 is about 384.3477526503.

The spelling of 56777078 in words is "fifty-six million, seven hundred seventy-seven thousand, seventy-eight".