5255631 has 8 divisors (see below), whose sum is σ = 7786160. Its totient is φ = 3503736.

The previous prime is 5255629. The next prime is 5255651. The reversal of 5255631 is 1365525.

5255631 is a `hidden beast` number, since 5 + 25 + 5 + 631 = 666.

It is not a de Polignac number, because 5255631 - 2¹ = 5255629 is a prime.

It is a super-2 number, since 2×5255631² = 55243314416322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 194653 = 5255631 / (5 + 2 + 5 + 5 + 6 + 3 + 1).

It is a Duffinian number.

5255631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5255595 and 5255604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5255651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97300 + ... + 97353.

It is an arithmetic number, because the mean of its divisors is an integer number (973270).

Almost surely, 2^5255631 is an apocalyptic number.

5255631 is a deficient number, since it is larger than the sum of its proper divisors (2530529).

5255631 is a wasteful number, since it uses less digits than its factorization.

5255631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194662 (or 194656 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 5255631 is about 2292.5163031045. The cubic root of 5255631 is about 173.8634481561.

It can be divided in two parts, 5255 and 631, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 5255631 in words is "five million, two hundred fifty-five thousand, six hundred thirty-one".