27775025252500 has 30 divisors (see below), whose sum is σ = 60738425227634. Its totient is φ = 11110010100000.

The previous prime is 27775025252483. The next prime is 27775025252521. The reversal of 27775025252500 is 525252057772.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 2325704300676 + 25449320951824 = 1525026^2 + 5044732^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5555002551 + ... + 5555007550.

Almost surely, 2^{27775025252500} is an apocalyptic number.

27775025252500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27775025252500 is an abundant number, since it is smaller than the sum of its proper divisors (32963399975134).

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

27775025252500 is a wasteful number, since it uses less digits than its factorization.

27775025252500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110010125 (or 11110010108 counting only the distinct ones).

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

The spelling of 27775025252500 in words is "twenty-seven trillion, seven hundred seventy-five billion, twenty-five million, two hundred fifty-two thousand, five hundred".