82511392 has 48 divisors (see below), whose sum is σ = 166440960. Its totient is φ = 40255488.

The previous prime is 82511333. The next prime is 82511399. The reversal of 82511392 is 29311528.

It is not an unprimeable number, because it can be changed into a prime (82511399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320928 + ... + 321184.

It is an arithmetic number, because the mean of its divisors is an integer number (3467520).

Almost surely, 2^82511392 is an apocalyptic number.

It is an amenable number.

82511392 is an abundant number, since it is smaller than the sum of its proper divisors (83929568).

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

82511392 is a wasteful number, since it uses less digits than its factorization.

82511392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 465 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 82511392 is about 9083.5781496060. The cubic root of 82511392 is about 435.3494211005.

The spelling of 82511392 in words is "eighty-two million, five hundred eleven thousand, three hundred ninety-two".