55963831 has 18 divisors (see below), whose sum is σ = 71564640. Its totient is φ = 43603560.

The previous prime is 55963783. The next prime is 55963841. The reversal of 55963831 is 13836955.

It is not a de Polignac number, because 55963831 - 2⁷ = 55963703 is a prime.

It is a super-3 number, since 3×55963831³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55963841) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1210 + ... + 10648.

Almost surely, 2^55963831 is an apocalyptic number.

55963831 is a deficient number, since it is larger than the sum of its proper divisors (15600809).

55963831 is a wasteful number, since it uses less digits than its factorization.

55963831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9475 (or 9457 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 55963831 is about 7480.8977402448. The cubic root of 55963831 is about 382.5038511865.

The spelling of 55963831 in words is "fifty-five million, nine hundred sixty-three thousand, eight hundred thirty-one".