662551056 has 40 divisors (see below), whose sum is σ = 1901768160. Its totient is φ = 220850208.

The previous prime is 662551049. The next prime is 662551067. The reversal of 662551056 is 650155266.

It is a happy number.

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 662551056.

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, 766410 + ... + 767273.

It is an arithmetic number, because the mean of its divisors is an integer number (47544204).

Almost surely, 2^662551056 is an apocalyptic number.

It is an amenable number.

662551056 is an abundant number, since it is smaller than the sum of its proper divisors (1239217104).

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

662551056 is a wasteful number, since it uses less digits than its factorization.

662551056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533700 (or 1533688 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 662551056 is about 25740.0671327796. The cubic root of 662551056 is about 871.7790942259.

The spelling of 662551056 in words is "six hundred sixty-two million, five hundred fifty-one thousand, fifty-six".