55283631 has 16 divisors (see below), whose sum is σ = 79521120. Its totient is φ = 33960960.

The previous prime is 55283623. The next prime is 55283687. The reversal of 55283631 is 13638255.

It is not a de Polignac number, because 55283631 - 2³ = 55283623 is a prime.

It is a super-2 number, since 2×55283631² = 6112559713088322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55283592 and 55283601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55283131) 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 15 ways as a sum of consecutive naturals, for example, 33555 + ... + 35163.

It is an arithmetic number, because the mean of its divisors is an integer number (4970070).

Almost surely, 2^55283631 is an apocalyptic number.

55283631 is a deficient number, since it is larger than the sum of its proper divisors (24237489).

55283631 is a wasteful number, since it uses less digits than its factorization.

55283631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506.

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

The square root of 55283631 is about 7435.2962953738. The cubic root of 55283631 is about 380.9478438673.

The spelling of 55283631 in words is "fifty-five million, two hundred eighty-three thousand, six hundred thirty-one".