625820297 has 2 divisors, whose sum is σ = 625820298. Its totient is φ = 625820296.

The previous prime is 625820263. The next prime is 625820311. The reversal of 625820297 is 792028526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 601426576 + 24393721 = 24524^2 + 4939^2 .

It is a cyclic number.

It is not a de Polignac number, because 625820297 - 2¹⁰ = 625819273 is a prime.

It is not a weakly prime, because it can be changed into another prime (625820207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312910148 + 312910149.

It is an arithmetic number, because the mean of its divisors is an integer number (312910149).

Almost surely, 2^625820297 is an apocalyptic number.

It is an amenable number.

625820297 is a deficient number, since it is larger than the sum of its proper divisors (1).

625820297 is an equidigital number, since it uses as much as digits as its factorization.

625820297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 625820297 is about 25016.4005604324. The cubic root of 625820297 is about 855.3618599841.

The spelling of 625820297 in words is "six hundred twenty-five million, eight hundred twenty thousand, two hundred ninety-seven".