56156001 has 16 divisors (see below), whose sum is σ = 85981440. Its totient is φ = 32242320.

The previous prime is 56155999. The next prime is 56156003. The reversal of 56156001 is 10065165.

It is an interprime number because it is at equal distance from previous prime (56155999) and next prime (56156003).

It is not a de Polignac number, because 56156001 - 2¹ = 56155999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56156003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44155 + ... + 45408.

It is an arithmetic number, because the mean of its divisors is an integer number (5373840).

Almost surely, 2^56156001 is an apocalyptic number.

It is an amenable number.

56156001 is a deficient number, since it is larger than the sum of its proper divisors (29825439).

56156001 is a wasteful number, since it uses less digits than its factorization.

56156001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89596.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 56156001 is about 7493.7307797919. The cubic root of 56156001 is about 382.9411681023.

The spelling of 56156001 in words is "fifty-six million, one hundred fifty-six thousand, one".