875664556 has 48 divisors (see below), whose sum is σ = 1762193664. Its totient is φ = 377568576.

The previous prime is 875664499. The next prime is 875664557. The reversal of 875664556 is 655466578.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (875664557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42915 + ... + 59941.

It is an arithmetic number, because the mean of its divisors is an integer number (36712368).

Almost surely, 2^875664556 is an apocalyptic number.

875664556 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

875664556 is an abundant number, since it is smaller than the sum of its proper divisors (886529108).

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

875664556 is a wasteful number, since it uses less digits than its factorization.

875664556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17110 (or 17108 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 52.

The square root of 875664556 is about 29591.6298300719. The cubic root of 875664556 is about 956.7076729473.

The spelling of 875664556 in words is "eight hundred seventy-five million, six hundred sixty-four thousand, five hundred fifty-six".