77056527 has 4 divisors (see below), whose sum is σ = 102742040. Its totient is φ = 51371016.

The previous prime is 77056493. The next prime is 77056543. The reversal of 77056527 is 72565077.

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

It is not a de Polignac number, because 77056527 - 2⁸ = 77056271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77056027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12842752 + ... + 12842757.

It is an arithmetic number, because the mean of its divisors is an integer number (25685510).

Almost surely, 2^77056527 is an apocalyptic number.

77056527 is a deficient number, since it is larger than the sum of its proper divisors (25685513).

77056527 is a wasteful number, since it uses less digits than its factorization.

77056527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25685512.

The product of its (nonzero) digits is 102900, while the sum is 39.

The square root of 77056527 is about 8778.1847212280. The cubic root of 77056527 is about 425.5361666724.

The spelling of 77056527 in words is "seventy-seven million, fifty-six thousand, five hundred twenty-seven".