56320151 has 4 divisors (see below), whose sum is σ = 56355000. Its totient is φ = 56285304.

The previous prime is 56320109. The next prime is 56320163. The reversal of 56320151 is 15102365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56320151 - 2¹⁸ = 56058007 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 (56320181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14876 + ... + 18273.

It is an arithmetic number, because the mean of its divisors is an integer number (14088750).

Almost surely, 2^56320151 is an apocalyptic number.

56320151 is a deficient number, since it is larger than the sum of its proper divisors (34849).

56320151 is a wasteful number, since it uses less digits than its factorization.

56320151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34848.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 56320151 is about 7504.6752761195. The cubic root of 56320151 is about 383.3139311331.

The spelling of 56320151 in words is "fifty-six million, three hundred twenty thousand, one hundred fifty-one".