625345837 has 2 divisors, whose sum is σ = 625345838. Its totient is φ = 625345836.

The previous prime is 625345829. The next prime is 625345859. The reversal of 625345837 is 738543526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387538596 + 237807241 = 19686^2 + 15421^2 .

It is a cyclic number.

It is not a de Polignac number, because 625345837 - 2³ = 625345829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 625345793 and 625345802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625345807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312672918 + 312672919.

It is an arithmetic number, because the mean of its divisors is an integer number (312672919).

Almost surely, 2^625345837 is an apocalyptic number.

It is an amenable number.

625345837 is a deficient number, since it is larger than the sum of its proper divisors (1).

625345837 is an equidigital number, since it uses as much as digits as its factorization.

625345837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 43.

The square root of 625345837 is about 25006.9157834388. The cubic root of 625345837 is about 855.1456437139.

The spelling of 625345837 in words is "six hundred twenty-five million, three hundred forty-five thousand, eight hundred thirty-seven".