625965965 has 8 divisors (see below), whose sum is σ = 751571448. Its totient is φ = 500497920.

The previous prime is 625965947. The next prime is 625965973. The reversal of 625965965 is 569569526.

It can be written as a sum of positive squares in 4 ways, for example, as 3912484 + 622053481 = 1978^2 + 24941^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 625965965 - 2²⁰ = 624917389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24056 + ... + 42785.

It is an arithmetic number, because the mean of its divisors is an integer number (93946431).

Almost surely, 2^625965965 is an apocalyptic number.

It is an amenable number.

625965965 is a deficient number, since it is larger than the sum of its proper divisors (125605483).

625965965 is a wasteful number, since it uses less digits than its factorization.

625965965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68719.

The product of its digits is 4374000, while the sum is 53.

The square root of 625965965 is about 25019.3118410559. The cubic root of 625965965 is about 855.4282204532.

The spelling of 625965965 in words is "six hundred twenty-five million, nine hundred sixty-five thousand, nine hundred sixty-five".