56156550109 has 8 divisors (see below), whose sum is σ = 64865320128. Its totient is φ = 48048384960.

The previous prime is 56156550101. The next prime is 56156550113. The reversal of 56156550109 is 90105565165.

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 56156550109 - 2³ = 56156550101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56156550101) 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, 150151017 + ... + 150151390.

It is an arithmetic number, because the mean of its divisors is an integer number (8108165016).

Almost surely, 2^56156550109 is an apocalyptic number.

It is an amenable number.

56156550109 is a deficient number, since it is larger than the sum of its proper divisors (8708770019).

56156550109 is a wasteful number, since it uses less digits than its factorization.

56156550109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300302435.

The product of its (nonzero) digits is 202500, while the sum is 43.

The spelling of 56156550109 in words is "fifty-six billion, one hundred fifty-six million, five hundred fifty thousand, one hundred nine".