625345807 has 2 divisors, whose sum is σ = 625345808. Its totient is φ = 625345806.

The previous prime is 625345793. The next prime is 625345811. The reversal of 625345807 is 708543526.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625345807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625345807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625345837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312672903 + 312672904.

It is an arithmetic number, because the mean of its divisors is an integer number (312672904).

Almost surely, 2^625345807 is an apocalyptic number.

625345807 is a deficient number, since it is larger than the sum of its proper divisors (1).

625345807 is an equidigital number, since it uses as much as digits as its factorization.

625345807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 625345807 is about 25006.9151836047. The cubic root of 625345807 is about 855.1456300392.

The spelling of 625345807 in words is "six hundred twenty-five million, three hundred forty-five thousand, eight hundred seven".