56956389 has 16 divisors (see below), whose sum is σ = 86896128. Its totient is φ = 32506992.

The previous prime is 56956373. The next prime is 56956439. The reversal of 56956389 is 98365965.

It is not a de Polignac number, because 56956389 - 2⁴ = 56956373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56954389) 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, 33334 + ... + 35000.

It is an arithmetic number, because the mean of its divisors is an integer number (5431008).

Almost surely, 2^56956389 is an apocalyptic number.

It is an amenable number.

56956389 is a deficient number, since it is larger than the sum of its proper divisors (29939739).

56956389 is a wasteful number, since it uses less digits than its factorization.

56956389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304.

The product of its digits is 1749600, while the sum is 51.

The square root of 56956389 is about 7546.9456735821. The cubic root of 56956389 is about 384.7519378029.

The spelling of 56956389 in words is "fifty-six million, nine hundred fifty-six thousand, three hundred eighty-nine".