56615406501 has 8 divisors (see below), whose sum is σ = 76911495840. Its totient is φ = 37031460752.

The previous prime is 56615406467. The next prime is 56615406553. The reversal of 56615406501 is 10560451665.

56615406501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56615406501 - 2⁷ = 56615406373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56615406501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56615606501) 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, 178035711 + ... + 178036028.

It is an arithmetic number, because the mean of its divisors is an integer number (9613936980).

Almost surely, 2^56615406501 is an apocalyptic number.

It is an amenable number.

56615406501 is a deficient number, since it is larger than the sum of its proper divisors (20296089339).

56615406501 is a wasteful number, since it uses less digits than its factorization.

56615406501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356071795.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 56615406501 in words is "fifty-six billion, six hundred fifteen million, four hundred six thousand, five hundred one".