80561496 has 32 divisors (see below), whose sum is σ = 201700800. Its totient is φ = 26814240.

The previous prime is 80561473. The next prime is 80561497. The reversal of 80561496 is 69416508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80561497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17395 + ... + 21533.

It is an arithmetic number, because the mean of its divisors is an integer number (6303150).

Almost surely, 2^80561496 is an apocalyptic number.

It is an amenable number.

80561496 is an abundant number, since it is smaller than the sum of its proper divisors (121139304).

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

80561496 is a wasteful number, since it uses less digits than its factorization.

80561496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959 (or 4955 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 80561496 is about 8975.6056063087. The cubic root of 80561496 is about 431.8926773865.

The spelling of 80561496 in words is "eighty million, five hundred sixty-one thousand, four hundred ninety-six".