55888831 has 4 divisors (see below), whose sum is σ = 55915992. Its totient is φ = 55861672.

The previous prime is 55888757. The next prime is 55888853. The reversal of 55888831 is 13888855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13888855 = 5 ⋅2777771.

It is a cyclic number.

It is not a de Polignac number, because 55888831 - 2¹⁷ = 55757759 is a prime.

It is a super-2 number, since 2×55888831² = 6247122861093122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55888531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10216 + ... + 14701.

It is an arithmetic number, because the mean of its divisors is an integer number (13978998).

Almost surely, 2^55888831 is an apocalyptic number.

55888831 is a deficient number, since it is larger than the sum of its proper divisors (27161).

55888831 is a wasteful number, since it uses less digits than its factorization.

55888831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27160.

The product of its digits is 307200, while the sum is 46.

The square root of 55888831 is about 7475.8832922940. The cubic root of 55888831 is about 382.3329037895.

The spelling of 55888831 in words is "fifty-five million, eight hundred eighty-eight thousand, eight hundred thirty-one".