56400080 has 40 divisors (see below), whose sum is σ = 143053344. Its totient is φ = 20508800.

The previous prime is 56400079. The next prime is 56400103. The reversal of 56400080 is 8000465.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31166 + ... + 32925.

Almost surely, 2^56400080 is an apocalyptic number.

It is an amenable number.

56400080 is an abundant number, since it is smaller than the sum of its proper divisors (86653264).

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

56400080 is a wasteful number, since it uses less digits than its factorization.

56400080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64115 (or 64109 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 56400080 is about 7509.9986684420. The cubic root of 56400080 is about 383.4951771963.

The spelling of 56400080 in words is "fifty-six million, four hundred thousand, eighty".