66254256 has 30 divisors (see below), whose sum is σ = 185420300. Its totient is φ = 22084704.

The previous prime is 66254231. The next prime is 66254261. The reversal of 66254256 is 65245266.

66254256 is a `hidden beast` number, since 6 + 62 + 542 + 56 = 666.

It is a super-2 number, since 2×66254256² = 8779252876227072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 66254256.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229906 + ... + 230193.

Almost surely, 2^66254256 is an apocalyptic number.

It is an amenable number.

66254256 is an abundant number, since it is smaller than the sum of its proper divisors (119166044).

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

66254256 is a wasteful number, since it uses less digits than its factorization.

66254256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460113 (or 460104 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 66254256 is about 8139.6717378528. The cubic root of 66254256 is about 404.6422813009.

The spelling of 66254256 in words is "sixty-six million, two hundred fifty-four thousand, two hundred fifty-six".