225994554 has 24 divisors (see below), whose sum is σ = 489988980. Its totient is φ = 75280128.

The previous prime is 225994547. The next prime is 225994579. The reversal of 225994554 is 455499522.

225994554 is a `hidden beast` number, since 2 + 2 + 5 + 9 + 94 + 554 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 212488929 + 13505625 = 14577^2 + 3675^2 .

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, 30442 + ... + 37130.

Almost surely, 2^225994554 is an apocalyptic number.

225994554 is an abundant number, since it is smaller than the sum of its proper divisors (263994426).

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

225994554 is a wasteful number, since it uses less digits than its factorization.

225994554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8574 (or 8571 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 225994554 is about 15033.1152460160. The cubic root of 225994554 is about 609.1150421282.

The spelling of 225994554 in words is "two hundred twenty-five million, nine hundred ninety-four thousand, five hundred fifty-four".