55364686155025 has 27 divisors (see below), whose sum is σ = 74340025637619. Its totient is φ = 40884334158720.

The previous prime is 55364686154957. The next prime is 55364686155061. The reversal of 55364686155025 is 52055168646355.

The square root of 55364686155025 is 7440745.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 40602677112529 + 14762009042496 = 6372023^2 + 3842136^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55364686155025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 483591189 + ... + 483705661.

Almost surely, 2^{55364686155025} is an apocalyptic number.

55364686155025 is the 7440745-th square number.

55364686155025 is the 3720373-rd centered octagonal number.

It is an amenable number.

55364686155025 is a deficient number, since it is larger than the sum of its proper divisors (18975339482594).

55364686155025 is an frugal number, since it uses more digits than its factorization.

55364686155025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228982 (or 114491 counting only the distinct ones).

The product of its (nonzero) digits is 129600000, while the sum is 61.

The spelling of 55364686155025 in words is "fifty-five trillion, three hundred sixty-four billion, six hundred eighty-six million, one hundred fifty-five thousand, twenty-five".