55555550255025 has 18 divisors (see below), whose sum is σ = 99506163346070. Its totient is φ = 29629626802560.

The previous prime is 55555550255017. The next prime is 55555550255027. The reversal of 55555550255025 is 52055205555555.

It can be written as a sum of positive squares in 3 ways, for example, as 14796608516496 + 40758941738529 = 3846636^2 + 6384273^2 .

It is not a de Polignac number, because 55555550255025 - 2³ = 55555550255017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55555550255027) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 123456778120 + ... + 123456778569.

Almost surely, 2^{55555550255025} is an apocalyptic number.

It is an amenable number.

55555550255025 is a deficient number, since it is larger than the sum of its proper divisors (43950613091045).

55555550255025 is a wasteful number, since it uses less digits than its factorization.

55555550255025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246913556705 (or 246913556697 counting only the distinct ones).

The product of its (nonzero) digits is 39062500, while the sum is 54.

The spelling of 55555550255025 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred fifty million, two hundred fifty-five thousand, twenty-five".