55002631 has 2 divisors, whose sum is σ = 55002632. Its totient is φ = 55002630.

The previous prime is 55002617. The next prime is 55002677. The reversal of 55002631 is 13620055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55002631 - 2⁷ = 55002503 is a prime.

It is a super-2 number, since 2×55002631² = 6050578833844322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55002611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27501315 + 27501316.

It is an arithmetic number, because the mean of its divisors is an integer number (27501316).

Almost surely, 2^55002631 is an apocalyptic number.

55002631 is a deficient number, since it is larger than the sum of its proper divisors (1).

55002631 is an equidigital number, since it uses as much as digits as its factorization.

55002631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 55002631 is about 7416.3758669582. The cubic root of 55002631 is about 380.3013099600.

Adding to 55002631 its reverse (13620055), we get a palindrome (68622686).

The spelling of 55002631 in words is "fifty-five million, two thousand, six hundred thirty-one".