625002641 has 2 divisors, whose sum is σ = 625002642. Its totient is φ = 625002640.

The previous prime is 625002629. The next prime is 625002649. The reversal of 625002641 is 146200526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 561879616 + 63123025 = 23704^2 + 7945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625002641 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625002641.

It is not a weakly prime, because it can be changed into another prime (625002649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312501320 + 312501321.

It is an arithmetic number, because the mean of its divisors is an integer number (312501321).

Almost surely, 2^625002641 is an apocalyptic number.

It is an amenable number.

625002641 is a deficient number, since it is larger than the sum of its proper divisors (1).

625002641 is an equidigital number, since it uses as much as digits as its factorization.

625002641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 625002641 is about 25000.0528199442. The cubic root of 625002641 is about 854.9891776157.

The spelling of 625002641 in words is "six hundred twenty-five million, two thousand, six hundred forty-one".