82551512 has 32 divisors (see below), whose sum is σ = 160389120. Its totient is φ = 39791520.

The previous prime is 82551509. The next prime is 82551533. The reversal of 82551512 is 21515528.

It is a super-2 number, since 2×82551512² = 13629504266972288, which contains 22 as substring.

It is a congruent number.

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, 90563 + ... + 91469.

It is an arithmetic number, because the mean of its divisors is an integer number (5012160).

Almost surely, 2^82551512 is an apocalyptic number.

It is an amenable number.

82551512 is a deficient number, since it is larger than the sum of its proper divisors (77837608).

82551512 is a wasteful number, since it uses less digits than its factorization.

82551512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311 (or 1307 counting only the distinct ones).

The product of its digits is 4000, while the sum is 29.

The square root of 82551512 is about 9085.7862620689. The cubic root of 82551512 is about 435.4199705047.

The spelling of 82551512 in words is "eighty-two million, five hundred fifty-one thousand, five hundred twelve".