225655633525 has 48 divisors (see below), whose sum is σ = 320927459328. Its totient is φ = 154184184000.

The previous prime is 225655633487. The next prime is 225655633561. The reversal of 225655633525 is 525336556522.

It is not a de Polignac number, because 225655633525 - 2²⁵ = 225622079093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70714680 + ... + 70717870.

It is an arithmetic number, because the mean of its divisors is an integer number (6685988736).

Almost surely, 2^225655633525 is an apocalyptic number.

225655633525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225655633525 is a deficient number, since it is larger than the sum of its proper divisors (95271825803).

225655633525 is a wasteful number, since it uses less digits than its factorization.

225655633525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522 (or 4517 counting only the distinct ones).

The product of its digits is 8100000, while the sum is 49.

The spelling of 225655633525 in words is "two hundred twenty-five billion, six hundred fifty-five million, six hundred thirty-three thousand, five hundred twenty-five".