5255531 has 2 divisors, whose sum is σ = 5255532. Its totient is φ = 5255530.

The previous prime is 5255527. The next prime is 5255561. The reversal of 5255531 is 1355525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5255531 - 2² = 5255527 is a prime.

It is a super-2 number, since 2×5255531² = 55241212183922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5255531.

It is not a weakly prime, because it can be changed into another prime (5255561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627765 + 2627766.

It is an arithmetic number, because the mean of its divisors is an integer number (2627766).

Almost surely, 2^5255531 is an apocalyptic number.

5255531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5255531 is an equidigital number, since it uses as much as digits as its factorization.

5255531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3750, while the sum is 26.

The square root of 5255531 is about 2292.4944929051. The cubic root of 5255531 is about 173.8623454369.

The spelling of 5255531 in words is "five million, two hundred fifty-five thousand, five hundred thirty-one".