56995881 has 8 divisors (see below), whose sum is σ = 76101120. Its totient is φ = 37943952.

The previous prime is 56995879. The next prime is 56995903. The reversal of 56995881 is 18859965.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56995881 - 2¹ = 56995879 is a prime.

It is a super-2 number, since 2×56995881² = 6497060901932322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56995811) 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, 10761 + ... + 15158.

It is an arithmetic number, because the mean of its divisors is an integer number (9512640).

Almost surely, 2^56995881 is an apocalyptic number.

It is an amenable number.

56995881 is a deficient number, since it is larger than the sum of its proper divisors (19105239).

56995881 is a wasteful number, since it uses less digits than its factorization.

56995881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26655.

The product of its digits is 777600, while the sum is 51.

The square root of 56995881 is about 7549.5616429035. The cubic root of 56995881 is about 384.8408427429.

The spelling of 56995881 in words is "fifty-six million, nine hundred ninety-five thousand, eight hundred eighty-one".