625620329 has 2 divisors, whose sum is σ = 625620330. Its totient is φ = 625620328.

The previous prime is 625620323. The next prime is 625620371. The reversal of 625620329 is 923026526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 585640000 + 39980329 = 24200^2 + 6323^2 .

It is a cyclic number.

It is not a de Polignac number, because 625620329 - 2⁴ = 625620313 is a prime.

It is not a weakly prime, because it can be changed into another prime (625620323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312810164 + 312810165.

It is an arithmetic number, because the mean of its divisors is an integer number (312810165).

Almost surely, 2^625620329 is an apocalyptic number.

It is an amenable number.

625620329 is a deficient number, since it is larger than the sum of its proper divisors (1).

625620329 is an equidigital number, since it uses as much as digits as its factorization.

625620329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 625620329 is about 25012.4035030622. The cubic root of 625620329 is about 855.2707458510.

The spelling of 625620329 in words is "six hundred twenty-five million, six hundred twenty thousand, three hundred twenty-nine".