56872001 has 4 divisors (see below), whose sum is σ = 56891604. Its totient is φ = 56852400.

The previous prime is 56871967. The next prime is 56872003. The reversal of 56872001 is 10027865.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8708401 + 48163600 = 2951^2 + 6940^2 .

It is a cyclic number.

It is not a de Polignac number, because 56872001 - 2⁶ = 56871937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56872003) 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, 4490 + ... + 11571.

It is an arithmetic number, because the mean of its divisors is an integer number (14222901).

Almost surely, 2^56872001 is an apocalyptic number.

It is an amenable number.

56872001 is a deficient number, since it is larger than the sum of its proper divisors (19603).

56872001 is a wasteful number, since it uses less digits than its factorization.

56872001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19602.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 56872001 is about 7541.3527301141. The cubic root of 56872001 is about 384.5618245387.

Adding to 56872001 its reverse (10027865), we get a palindrome (66899866).

The spelling of 56872001 in words is "fifty-six million, eight hundred seventy-two thousand, one".