422625655 has 16 divisors (see below), whose sum is σ = 521547264. Its totient is φ = 328527360.

The previous prime is 422625611. The next prime is 422625701. The reversal of 422625655 is 556526224.

It is a de Polignac number, because none of the positive numbers 2^k-422625655 is a prime.

It is a super-2 number, since 2×422625655² = 357224888528358050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

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, 271359 + ... + 272911.

It is an arithmetic number, because the mean of its divisors is an integer number (32596704).

Almost surely, 2^422625655 is an apocalyptic number.

422625655 is a deficient number, since it is larger than the sum of its proper divisors (98921609).

422625655 is a wasteful number, since it uses less digits than its factorization.

422625655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066.

The product of its digits is 144000, while the sum is 37.

The square root of 422625655 is about 20557.8611484755. The cubic root of 422625655 is about 750.4445690184. Note that the first 3 decimals are identical.

The spelling of 422625655 in words is "four hundred twenty-two million, six hundred twenty-five thousand, six hundred fifty-five".