625840259 has 16 divisors (see below), whose sum is σ = 719940480. Its totient is φ = 538047360.

The previous prime is 625840253. The next prime is 625840273. The reversal of 625840259 is 952048526.

It is a cyclic number.

It is not a de Polignac number, because 625840259 - 2²⁴ = 609063043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625840253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132059 + ... + 136715.

It is an arithmetic number, because the mean of its divisors is an integer number (44996280).

Almost surely, 2^625840259 is an apocalyptic number.

625840259 is a deficient number, since it is larger than the sum of its proper divisors (94100221).

625840259 is a wasteful number, since it uses less digits than its factorization.

625840259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 625840259 is about 25016.7995355121. The cubic root of 625840259 is about 855.3709544755.

The spelling of 625840259 in words is "six hundred twenty-five million, eight hundred forty thousand, two hundred fifty-nine".