55264631 has 2 divisors, whose sum is σ = 55264632. Its totient is φ = 55264630.

The previous prime is 55264613. The next prime is 55264663. The reversal of 55264631 is 13646255.

Together with previous prime (55264613) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (55264663) can be obtained adding 55264631 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55264631 is a prime.

It is a super-2 number, since 2×55264631² = 6108358879132322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55264031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27632315 + 27632316.

It is an arithmetic number, because the mean of its divisors is an integer number (27632316).

Almost surely, 2^55264631 is an apocalyptic number.

55264631 is a deficient number, since it is larger than the sum of its proper divisors (1).

55264631 is an equidigital number, since it uses as much as digits as its factorization.

55264631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 55264631 is about 7434.0184960760. The cubic root of 55264631 is about 380.9041972022.

The spelling of 55264631 in words is "fifty-five million, two hundred sixty-four thousand, six hundred thirty-one".