625402259 has 2 divisors, whose sum is σ = 625402260. Its totient is φ = 625402258.

The previous prime is 625402249. The next prime is 625402367. The reversal of 625402259 is 952204526.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 625402259 - 2⁴ = 625402243 is a prime.

It is a super-2 number, since 2×625402259² = 782255971124606162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (625402249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312701129 + 312701130.

It is an arithmetic number, because the mean of its divisors is an integer number (312701130).

Almost surely, 2^625402259 is an apocalyptic number.

625402259 is a deficient number, since it is larger than the sum of its proper divisors (1).

625402259 is an equidigital number, since it uses as much as digits as its factorization.

625402259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 625402259 is about 25008.0438859180. The cubic root of 625402259 is about 855.1713615240.

The spelling of 625402259 in words is "six hundred twenty-five million, four hundred two thousand, two hundred fifty-nine".