625815065 has 16 divisors (see below), whose sum is σ = 803908800. Its totient is φ = 466258752.

The previous prime is 625815061. The next prime is 625815083. The reversal of 625815065 is 560518526.

It is a cyclic number.

It is not a de Polignac number, because 625815065 - 2² = 625815061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625815061) 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, 50222 + ... + 61431.

It is an arithmetic number, because the mean of its divisors is an integer number (50244300).

Almost surely, 2^625815065 is an apocalyptic number.

It is an amenable number.

625815065 is a deficient number, since it is larger than the sum of its proper divisors (178093735).

625815065 is a wasteful number, since it uses less digits than its factorization.

625815065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111736.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 625815065 is about 25016.2959888150. The cubic root of 625815065 is about 855.3594763043.

The spelling of 625815065 in words is "six hundred twenty-five million, eight hundred fifteen thousand, sixty-five".