225558892478 has 16 divisors (see below), whose sum is σ = 343485375360. Its totient is φ = 111064720536.

The previous prime is 225558892463. The next prime is 225558892511. The reversal of 225558892478 is 874298855522.

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, 240425 + ... + 713387.

It is an arithmetic number, because the mean of its divisors is an integer number (21467835960).

Almost surely, 2^225558892478 is an apocalyptic number.

225558892478 is a deficient number, since it is larger than the sum of its proper divisors (117926482882).

225558892478 is a wasteful number, since it uses less digits than its factorization.

225558892478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476591.

The product of its digits is 129024000, while the sum is 65.

The spelling of 225558892478 in words is "two hundred twenty-five billion, five hundred fifty-eight million, eight hundred ninety-two thousand, four hundred seventy-eight".