80892520 has 32 divisors (see below), whose sum is σ = 183030120. Its totient is φ = 32175360.

The previous prime is 80892509. The next prime is 80892521. The reversal of 80892520 is 2529808.

It can be written as a sum of positive squares in 4 ways, for example, as 37675044 + 43217476 = 6138^2 + 6574^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (80892521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1654 + ... + 12826.

Almost surely, 2^80892520 is an apocalyptic number.

It is an amenable number.

80892520 is an abundant number, since it is smaller than the sum of its proper divisors (102137600).

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

80892520 is a wasteful number, since it uses less digits than its factorization.

80892520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11365 (or 11361 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 80892520 is about 8994.0269067865. The cubic root of 80892520 is about 432.4834123301.

It can be divided in two parts, 8089 and 2520, that added together give a square (10609 = 103²).

The spelling of 80892520 in words is "eighty million, eight hundred ninety-two thousand, five hundred twenty".