56531545401 has 8 divisors (see below), whose sum is σ = 75377698624. Its totient is φ = 37686544560.

The previous prime is 56531545397. The next prime is 56531545439. The reversal of 56531545401 is 10454513565.

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

It is not a de Polignac number, because 56531545401 - 2² = 56531545397 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 56531545401.

It is not an unprimeable number, because it can be changed into a prime (56531545451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166270 + ... + 375111.

It is an arithmetic number, because the mean of its divisors is an integer number (9422212328).

Almost surely, 2^56531545401 is an apocalyptic number.

It is an amenable number.

56531545401 is a deficient number, since it is larger than the sum of its proper divisors (18846153223).

56531545401 is a wasteful number, since it uses less digits than its factorization.

56531545401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576191.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 56531545401 in words is "fifty-six billion, five hundred thirty-one million, five hundred forty-five thousand, four hundred one".