225251408 has 20 divisors (see below), whose sum is σ = 438388608. Its totient is φ = 112118880.

The previous prime is 225251399. The next prime is 225251413. The reversal of 225251408 is 804152522.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27998 + ... + 35133.

Almost surely, 2^225251408 is an apocalyptic number.

It is an amenable number.

225251408 is a deficient number, since it is larger than the sum of its proper divisors (213137200).

225251408 is a wasteful number, since it uses less digits than its factorization.

225251408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63362 (or 63356 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 225251408 is about 15008.3779270113. The cubic root of 225251408 is about 608.4466506780.

The spelling of 225251408 in words is "two hundred twenty-five million, two hundred fifty-one thousand, four hundred eight".