225656160425 has 12 divisors (see below), whose sum is σ = 279930838860. Its totient is φ = 180449315520.

The previous prime is 225656160409. The next prime is 225656160449. The reversal of 225656160425 is 524061656522.

It can be written as a sum of positive squares in 6 ways, for example, as 919484329 + 224736676096 = 30323^2 + 474064^2 .

It is not a de Polignac number, because 225656160425 - 2⁴ = 225656160409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1829402 + ... + 1948851.

It is an arithmetic number, because the mean of its divisors is an integer number (23327569905).

Almost surely, 2^225656160425 is an apocalyptic number.

225656160425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225656160425 is a deficient number, since it is larger than the sum of its proper divisors (54274678435).

225656160425 is a wasteful number, since it uses less digits than its factorization.

225656160425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780652 (or 3780647 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 225656160425 in words is "two hundred twenty-five billion, six hundred fifty-six million, one hundred sixty thousand, four hundred twenty-five".