625434163 has 2 divisors, whose sum is σ = 625434164. Its totient is φ = 625434162.

The previous prime is 625434151. The next prime is 625434167. The reversal of 625434163 is 361434526.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 625434163 - 2⁹ = 625433651 is a prime.

It is not a weakly prime, because it can be changed into another prime (625434167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312717081 + 312717082.

It is an arithmetic number, because the mean of its divisors is an integer number (312717082).

Almost surely, 2^625434163 is an apocalyptic number.

625434163 is a deficient number, since it is larger than the sum of its proper divisors (1).

625434163 is an equidigital number, since it uses as much as digits as its factorization.

625434163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 34.

The square root of 625434163 is about 25008.6817525435. The cubic root of 625434163 is about 855.1859030573.

Adding to 625434163 its reverse (361434526), we get a palindrome (986868689).

The spelling of 625434163 in words is "six hundred twenty-five million, four hundred thirty-four thousand, one hundred sixty-three".