80551864 has 8 divisors (see below), whose sum is σ = 151034760. Its totient is φ = 40275928.

The previous prime is 80551841. The next prime is 80551873. The reversal of 80551864 is 46815508.

It is a tau number, because it is divible by the number of its divisors (8).

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5034484 + ... + 5034499.

It is an arithmetic number, because the mean of its divisors is an integer number (18879345).

Almost surely, 2^80551864 is an apocalyptic number.

It is an amenable number.

80551864 is a deficient number, since it is larger than the sum of its proper divisors (70482896).

80551864 is a wasteful number, since it uses less digits than its factorization.

80551864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10068989 (or 10068985 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 80551864 is about 8975.0690248042. The cubic root of 80551864 is about 431.8754642169.

The spelling of 80551864 in words is "eighty million, five hundred fifty-one thousand, eight hundred sixty-four".