55124231 has 8 divisors (see below), whose sum is σ = 57868800. Its totient is φ = 52440120.

The previous prime is 55124221. The next prime is 55124233. The reversal of 55124231 is 13242155.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55124231 is a prime.

It is a super-2 number, since 2×55124231² = 6077361686682722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55124197 and 55124206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55124233) 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, 13241 + ... + 16898.

It is an arithmetic number, because the mean of its divisors is an integer number (7233600).

Almost surely, 2^55124231 is an apocalyptic number.

55124231 is a deficient number, since it is larger than the sum of its proper divisors (2744569).

55124231 is a wasteful number, since it uses less digits than its factorization.

55124231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30229.

The product of its digits is 1200, while the sum is 23.

The square root of 55124231 is about 7424.5694151244. The cubic root of 55124231 is about 380.5813608168.

Adding to 55124231 its reverse (13242155), we get a palindrome (68366386).

It can be divided in two parts, 55124 and 231, that added together give a palindrome (55355).

The spelling of 55124231 in words is "fifty-five million, one hundred twenty-four thousand, two hundred thirty-one".