27752752525 has 12 divisors (see below), whose sum is σ = 34423903252. Its totient is φ = 22195434240.

The previous prime is 27752752471. The next prime is 27752752537. The reversal of 27752752525 is 52525725772.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 960628036 + 26792124489 = 30994^2 + 163683^2 .

It is not a de Polignac number, because 27752752525 - 2²³ = 27744363917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84714 + ... + 250363.

Almost surely, 2^27752752525 is an apocalyptic number.

27752752525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27752752525 is a deficient number, since it is larger than the sum of its proper divisors (6671150727).

27752752525 is a wasteful number, since it uses less digits than its factorization.

27752752525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338400 (or 338395 counting only the distinct ones).

The product of its digits is 3430000, while the sum is 49.

The spelling of 27752752525 in words is "twenty-seven billion, seven hundred fifty-two million, seven hundred fifty-two thousand, five hundred twenty-five".