481551564 has 48 divisors (see below), whose sum is σ = 1211624960. Its totient is φ = 147977280.

The previous prime is 481551557. The next prime is 481551589. The reversal of 481551564 is 465155184.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 160599 + ... + 163569.

Almost surely, 2^481551564 is an apocalyptic number.

It is an amenable number.

481551564 is an abundant number, since it is smaller than the sum of its proper divisors (730073396).

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

481551564 is a wasteful number, since it uses less digits than its factorization.

481551564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030 (or 4028 counting only the distinct ones).

The product of its digits is 96000, while the sum is 39.

The square root of 481551564 is about 21944.2831735284. The cubic root of 481551564 is about 783.8162552700.

The spelling of 481551564 in words is "four hundred eighty-one million, five hundred fifty-one thousand, five hundred sixty-four".