56653520401 has 8 divisors (see below), whose sum is σ = 59265599400. Its totient is φ = 54085342080.

The previous prime is 56653520393. The next prime is 56653520411. The reversal of 56653520401 is 10402535665.

It is a Cunningham number, because it is equal to 238020²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 10878490000 + 45775030401 = 104300^2 + 213951^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56653520401 - 2³ = 56653520393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56653520411) 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, 10972530 + ... + 10977691.

It is an arithmetic number, because the mean of its divisors is an integer number (7408199925).

Almost surely, 2^56653520401 is an apocalyptic number.

It is an amenable number.

56653520401 is a deficient number, since it is larger than the sum of its proper divisors (2612078999).

56653520401 is a wasteful number, since it uses less digits than its factorization.

56653520401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21950339.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 56653520401 in words is "fifty-six billion, six hundred fifty-three million, five hundred twenty thousand, four hundred one".