55683231 has 16 divisors (see below), whose sum is σ = 76788864. Its totient is φ = 35871264.

The previous prime is 55683227. The next prime is 55683259. The reversal of 55683231 is 13238655.

It is not a de Polignac number, because 55683231 - 2² = 55683227 is a prime.

It is a super-2 number, since 2×55683231² = 6201244429198722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55683192 and 55683201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55683431) 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, 8040 + ... + 13266.

It is an arithmetic number, because the mean of its divisors is an integer number (4799304).

Almost surely, 2^55683231 is an apocalyptic number.

55683231 is a deficient number, since it is larger than the sum of its proper divisors (21105633).

55683231 is a wasteful number, since it uses less digits than its factorization.

55683231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5350.

The product of its digits is 21600, while the sum is 33.

The square root of 55683231 is about 7462.1197390554. The cubic root of 55683231 is about 381.8634943492.

The spelling of 55683231 in words is "fifty-five million, six hundred eighty-three thousand, two hundred thirty-one".