56658280901 has 4 divisors (see below), whose sum is σ = 59991120972. Its totient is φ = 53325440832.

The previous prime is 56658280843. The next prime is 56658280919. The reversal of 56658280901 is 10908285665.

It is a Cunningham number, because it is equal to 238030²+1.

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 44110920676 + 12547360225 = 210026^2 + 112015^2 .

It is a cyclic number.

It is not a de Polignac number, because 56658280901 - 2³⁰ = 55584539077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56658280901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56658280951) 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, 1666420010 + ... + 1666420043.

It is an arithmetic number, because the mean of its divisors is an integer number (14997780243).

Almost surely, 2^56658280901 is an apocalyptic number.

It is an amenable number.

56658280901 is a deficient number, since it is larger than the sum of its proper divisors (3332840071).

56658280901 is a wasteful number, since it uses less digits than its factorization.

56658280901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332840070.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 56658280901 in words is "fifty-six billion, six hundred fifty-eight million, two hundred eighty thousand, nine hundred one".