625127231 has 2 divisors, whose sum is σ = 625127232. Its totient is φ = 625127230.

The previous prime is 625127197. The next prime is 625127273. The reversal of 625127231 is 132721526.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625127231 is a prime.

It is a super-2 number, since 2×625127231² = 781568109875454722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 625127194 and 625127203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625127131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312563615 + 312563616.

It is an arithmetic number, because the mean of its divisors is an integer number (312563616).

Almost surely, 2^625127231 is an apocalyptic number.

625127231 is a deficient number, since it is larger than the sum of its proper divisors (1).

625127231 is an equidigital number, since it uses as much as digits as its factorization.

625127231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 625127231 is about 25002.5444905114. The cubic root of 625127231 is about 855.0459859219.

Adding to 625127231 its reverse (132721526), we get a palindrome (757848757).

The spelling of 625127231 in words is "six hundred twenty-five million, one hundred twenty-seven thousand, two hundred thirty-one".