55798434927225 has 27 divisors (see below), whose sum is σ = 99941397470733. Its totient is φ = 29759105535840.

The previous prime is 55798434927113. The next prime is 55798434927227. The reversal of 55798434927225 is 52272943489755.

The square root of 55798434927225 is 7469835.

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

55798434927225 is a `hidden beast` number, since 5 + 5 + 7 + 9 + 8 + 4 + 349 + 272 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 511953129081 + 55286481798144 = 715509^2 + 7435488^2 .

It is not a de Polignac number, because 55798434927225 - 2⁹ = 55798434926713 is a prime.

It is a super-2 number, since 2×55798434927225² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55798434927227) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 111798531 + ... + 112296519.

Almost surely, 2^{55798434927225} is an apocalyptic number.

55798434927225 is the 7469835-th square number.

55798434927225 is the 3734918-th centered octagonal number.

It is an amenable number.

55798434927225 is a deficient number, since it is larger than the sum of its proper divisors (44142962543508).

55798434927225 is an frugal number, since it uses more digits than its factorization.

55798434927225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995994 (or 497997 counting only the distinct ones).

The product of its digits is 1524096000, while the sum is 72.

The spelling of 55798434927225 in words is "fifty-five trillion, seven hundred ninety-eight billion, four hundred thirty-four million, nine hundred twenty-seven thousand, two hundred twenty-five".