625316863 has 2 divisors, whose sum is σ = 625316864. Its totient is φ = 625316862.

The previous prime is 625316851. The next prime is 625316873. The reversal of 625316863 is 368613526.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 625316863 - 2¹⁷ = 625185791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625316803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312658431 + 312658432.

It is an arithmetic number, because the mean of its divisors is an integer number (312658432).

Almost surely, 2^625316863 is an apocalyptic number.

625316863 is a deficient number, since it is larger than the sum of its proper divisors (1).

625316863 is an equidigital number, since it uses as much as digits as its factorization.

625316863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 625316863 is about 25006.3364569863. The cubic root of 625316863 is about 855.1324364233.

The spelling of 625316863 in words is "six hundred twenty-five million, three hundred sixteen thousand, eight hundred sixty-three".