625667065 has 16 divisors (see below), whose sum is σ = 796405392. Its totient is φ = 470237184.

The previous prime is 625667051. The next prime is 625667087. The reversal of 625667065 is 560766526.

It can be written as a sum of positive squares in 8 ways, for example, as 127306089 + 498360976 = 11283^2 + 22324^2 .

It is a cyclic number.

It is not a de Polignac number, because 625667065 - 2⁵ = 625667033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42667 + ... + 55423.

It is an arithmetic number, because the mean of its divisors is an integer number (49775337).

Almost surely, 2^625667065 is an apocalyptic number.

It is an amenable number.

625667065 is a deficient number, since it is larger than the sum of its proper divisors (170738327).

625667065 is a wasteful number, since it uses less digits than its factorization.

625667065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13356.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 625667065 is about 25013.3377420927. The cubic root of 625667065 is about 855.2920425472.

The spelling of 625667065 in words is "six hundred twenty-five million, six hundred sixty-seven thousand, sixty-five".