56651280 has 80 divisors (see below), whose sum is σ = 200713344. Its totient is φ = 12948480.

The previous prime is 56651279. The next prime is 56651317. The reversal of 56651280 is 8215665.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) 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 15 ways as a sum of consecutive naturals, for example, 15181 + ... + 18540.

Almost surely, 2^56651280 is an apocalyptic number.

It is an amenable number.

56651280 is an abundant number, since it is smaller than the sum of its proper divisors (144062064).

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

56651280 is a wasteful number, since it uses less digits than its factorization.

56651280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33744 (or 33738 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 56651280 is about 7526.7044581277. The cubic root of 56651280 is about 384.0636830145.

The spelling of 56651280 in words is "fifty-six million, six hundred fifty-one thousand, two hundred eighty".