225857005144 has 32 divisors (see below), whose sum is σ = 427663566000. Its totient is φ = 111814826112.

The previous prime is 225857005117. The next prime is 225857005169. The reversal of 225857005144 is 441500758522.

It is a super-2 number, since 2×225857005144² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225857005144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1177887 + ... + 1356145.

Almost surely, 2^225857005144 is an apocalyptic number.

It is an amenable number.

225857005144 is a deficient number, since it is larger than the sum of its proper divisors (201806560856).

225857005144 is a wasteful number, since it uses less digits than its factorization.

225857005144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179827 (or 179823 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 43.

The spelling of 225857005144 in words is "two hundred twenty-five billion, eight hundred fifty-seven million, five thousand, one hundred forty-four".