55044531 has 12 divisors (see below), whose sum is σ = 79574040. Its totient is φ = 36666240.

The previous prime is 55044529. The next prime is 55044533. The reversal of 55044531 is 13544055.

It is an interprime number because it is at equal distance from previous prime (55044529) and next prime (55044533).

It is not a de Polignac number, because 55044531 - 2¹ = 55044529 is a prime.

It is a super-2 number, since 2×55044531² = 6059800786019922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55044495 and 55044504.

It is not an unprimeable number, because it can be changed into a prime (55044533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17260 + ... + 20198.

It is an arithmetic number, because the mean of its divisors is an integer number (6631170).

Almost surely, 2^55044531 is an apocalyptic number.

55044531 is a deficient number, since it is larger than the sum of its proper divisors (24529509).

55044531 is a wasteful number, since it uses less digits than its factorization.

55044531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026 (or 5023 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 55044531 is about 7419.2001590468. The cubic root of 55044531 is about 380.3978543136.

Adding to 55044531 its reverse (13544055), we get a palindrome (68588586).

The spelling of 55044531 in words is "fifty-five million, forty-four thousand, five hundred thirty-one".