80455815 has 64 divisors (see below), whose sum is σ = 165265920. Its totient is φ = 36702720.

The previous prime is 80455807. The next prime is 80455829. The reversal of 80455815 is 51855408.

It is not a de Polignac number, because 80455815 - 2³ = 80455807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80455815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23652 + ... + 26838.

It is an arithmetic number, because the mean of its divisors is an integer number (2582280).

Almost surely, 2^80455815 is an apocalyptic number.

80455815 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

80455815 is an abundant number, since it is smaller than the sum of its proper divisors (84810105).

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

80455815 is a wasteful number, since it uses less digits than its factorization.

80455815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229 (or 3223 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 80455815 is about 8969.7165507055. The cubic root of 80455815 is about 431.7037417078.

The spelling of 80455815 in words is "eighty million, four hundred fifty-five thousand, eight hundred fifteen".