80515695 has 16 divisors (see below), whose sum is σ = 138735072. Its totient is φ = 39638400.

The previous prime is 80515667. The next prime is 80515697. The reversal of 80515695 is 59651508.

It is not a de Polignac number, because 80515695 - 2⁸ = 80515439 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80515697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206256 + ... + 206645.

It is an arithmetic number, because the mean of its divisors is an integer number (8670942).

Almost surely, 2^80515695 is an apocalyptic number.

80515695 is a deficient number, since it is larger than the sum of its proper divisors (58219377).

80515695 is a wasteful number, since it uses less digits than its factorization.

80515695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412922.

The product of its (nonzero) digits is 54000, while the sum is 39.

The square root of 80515695 is about 8973.0538279897. The cubic root of 80515695 is about 431.8108150107.

The spelling of 80515695 in words is "eighty million, five hundred fifteen thousand, six hundred ninety-five".