77752553325 has 12 divisors (see below), whose sum is σ = 128550888288. Its totient is φ = 41468028400.

The previous prime is 77752553323. The next prime is 77752553363. The reversal of 77752553325 is 52335525777.

It is not a de Polignac number, because 77752553325 - 2¹ = 77752553323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77752553323) 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, 518350281 + ... + 518350430.

It is an arithmetic number, because the mean of its divisors is an integer number (10712574024).

Almost surely, 2^77752553325 is an apocalyptic number.

77752553325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77752553325 is a deficient number, since it is larger than the sum of its proper divisors (50798334963).

77752553325 is a wasteful number, since it uses less digits than its factorization.

77752553325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036700724 (or 1036700719 counting only the distinct ones).

The product of its digits is 7717500, while the sum is 51.

The spelling of 77752553325 in words is "seventy-seven billion, seven hundred fifty-two million, five hundred fifty-three thousand, three hundred twenty-five".