55205625525 has 24 divisors (see below), whose sum is σ = 91287386400. Its totient is φ = 29438456640.

The previous prime is 55205625523. The next prime is 55205625533. The reversal of 55205625525 is 52552650255.

It is not a de Polignac number, because 55205625525 - 2¹ = 55205625523 is a prime.

It is a super-2 number, since 2×55205625525² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55205625523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 464079 + ... + 570771.

It is an arithmetic number, because the mean of its divisors is an integer number (3803641100).

Almost surely, 2^55205625525 is an apocalyptic number.

It is an amenable number.

55205625525 is a deficient number, since it is larger than the sum of its proper divisors (36081760875).

55205625525 is a wasteful number, since it uses less digits than its factorization.

55205625525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113605 (or 113600 counting only the distinct ones).

The product of its (nonzero) digits is 750000, while the sum is 42.

The spelling of 55205625525 in words is "fifty-five billion, two hundred five million, six hundred twenty-five thousand, five hundred twenty-five".