56512801 has 8 divisors (see below), whose sum is σ = 59457384. Its totient is φ = 53642880.

The previous prime is 56512789. The next prime is 56512823. The reversal of 56512801 is 10821565.

It can be written as a sum of positive squares in 4 ways, for example, as 24601600 + 31911201 = 4960^2 + 5649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56512801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56512801.

It is not an unprimeable number, because it can be changed into a prime (56512831) 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, 17110 + ... + 20143.

It is an arithmetic number, because the mean of its divisors is an integer number (7432173).

Almost surely, 2^56512801 is an apocalyptic number.

It is an amenable number.

56512801 is a deficient number, since it is larger than the sum of its proper divisors (2944583).

56512801 is a wasteful number, since it uses less digits than its factorization.

56512801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37331.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 56512801 is about 7517.4996508148. The cubic root of 56512801 is about 383.7504912159.

It can be divided in two parts, 565 and 12801, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 56512801 in words is "fifty-six million, five hundred twelve thousand, eight hundred one".