80992525 has 12 divisors (see below), whose sum is σ = 100782612. Its totient is φ = 64567040.

The previous prime is 80992517. The next prime is 80992537. The reversal of 80992525 is 52529908.

It can be written as a sum of positive squares in 6 ways, for example, as 100489 + 80892036 = 317^2 + 8994^2 .

It is not a de Polignac number, because 80992525 - 2³ = 80992517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1797 + ... + 12853.

It is an arithmetic number, because the mean of its divisors is an integer number (8398551).

Almost surely, 2^80992525 is an apocalyptic number.

It is an amenable number.

80992525 is a deficient number, since it is larger than the sum of its proper divisors (19790087).

80992525 is a wasteful number, since it uses less digits than its factorization.

80992525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11360 (or 11355 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 80992525 is about 8999.5847126409. The cubic root of 80992525 is about 432.6615610340.

The spelling of 80992525 in words is "eighty million, nine hundred ninety-two thousand, five hundred twenty-five".