80557516 has 12 divisors (see below), whose sum is σ = 151820032. Its totient is φ = 37180368.

The previous prime is 80557501. The next prime is 80557531. The reversal of 80557516 is 61575508.

It is an interprime number because it is at equal distance from previous prime (80557501) and next prime (80557531).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774540 + ... + 774643.

Almost surely, 2^80557516 is an apocalyptic number.

It is an amenable number.

80557516 is a deficient number, since it is larger than the sum of its proper divisors (71262516).

80557516 is a wasteful number, since it uses less digits than its factorization.

80557516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549200 (or 1549198 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 80557516 is about 8975.3838915113. The cubic root of 80557516 is about 431.8855649682.

The spelling of 80557516 in words is "eighty million, five hundred fifty-seven thousand, five hundred sixteen".