77756052 has 36 divisors (see below), whose sum is σ = 199427648. Its totient is φ = 23562000.

The previous prime is 77756051. The next prime is 77756059. The reversal of 77756052 is 25065777.

It is a self number, because there is not a number n which added to its sum of digits gives 77756052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77756051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25324 + ... + 28227.

Almost surely, 2^77756052 is an apocalyptic number.

It is an amenable number.

77756052 is an abundant number, since it is smaller than the sum of its proper divisors (121671596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77756052 is a wasteful number, since it uses less digits than its factorization.

77756052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53580 (or 53567 counting only the distinct ones).

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

The square root of 77756052 is about 8817.9392150320. The cubic root of 77756052 is about 426.8199728493.

The spelling of 77756052 in words is "seventy-seven million, seven hundred fifty-six thousand, fifty-two".