225861156 has 48 divisors (see below), whose sum is σ = 587802880. Its totient is φ = 74999520.

The previous prime is 225861137. The next prime is 225861187. The reversal of 225861156 is 651168522.

225861156 is a `hidden beast` number, since 22 + 586 + 1 + 1 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 225861156.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25410 + ... + 33126.

Almost surely, 2^225861156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225861156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293901440).

225861156 is an abundant number, since it is smaller than the sum of its proper divisors (361941724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225861156 is a wasteful number, since it uses less digits than its factorization.

225861156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8001 (or 7993 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 225861156 is about 15028.6777861527. The cubic root of 225861156 is about 608.9951709195.

The spelling of 225861156 in words is "two hundred twenty-five million, eight hundred sixty-one thousand, one hundred fifty-six".