225550431 has 6 divisors (see below), whose sum is σ = 325795080. Its totient is φ = 150366948.

The previous prime is 225550427. The next prime is 225550453. The reversal of 225550431 is 134055522.

It is a happy number.

225550431 is a `hidden beast` number, since 225 + 5 + 5 + 0 + 431 = 666.

It is not a de Polignac number, because 225550431 - 2² = 225550427 is a prime.

It is a super-2 number, since 2×225550431² = 101745993848571522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225550395 and 225550404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225550411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12530571 + ... + 12530588.

It is an arithmetic number, because the mean of its divisors is an integer number (54299180).

Almost surely, 2^225550431 is an apocalyptic number.

225550431 is a deficient number, since it is larger than the sum of its proper divisors (100244649).

225550431 is a wasteful number, since it uses less digits than its factorization.

225550431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25061165 (or 25061162 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 225550431 is about 15018.3364924348. The cubic root of 225550431 is about 608.7157708506.

The spelling of 225550431 in words is "two hundred twenty-five million, five hundred fifty thousand, four hundred thirty-one".