56480657 has 4 divisors (see below), whose sum is σ = 57858276. Its totient is φ = 55103040.

The previous prime is 56480653. The next prime is 56480687. The reversal of 56480657 is 75608465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75608465 = 5 ⋅15121693.

It can be written as a sum of positive squares in 2 ways, for example, as 1957201 + 54523456 = 1399^2 + 7384^2 .

It is a cyclic number.

It is not a de Polignac number, because 56480657 - 2² = 56480653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1377577 = 56480657 / (5 + 6 + 4 + 8 + 0 + 6 + 5 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56480651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688748 + ... + 688829.

It is an arithmetic number, because the mean of its divisors is an integer number (14464569).

Almost surely, 2^56480657 is an apocalyptic number.

It is an amenable number.

56480657 is a deficient number, since it is larger than the sum of its proper divisors (1377619).

56480657 is a wasteful number, since it uses less digits than its factorization.

56480657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377618.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 56480657 is about 7515.3614018223. The cubic root of 56480657 is about 383.6777194129.

The spelling of 56480657 in words is "fifty-six million, four hundred eighty thousand, six hundred fifty-seven".