625445701 has 2 divisors, whose sum is σ = 625445702. Its totient is φ = 625445700.

The previous prime is 625445671. The next prime is 625445729. The reversal of 625445701 is 107544526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 605652100 + 19793601 = 24610^2 + 4449^2 .

It is a cyclic number.

It is not a de Polignac number, because 625445701 - 2¹⁹ = 624921413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625445741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312722850 + 312722851.

It is an arithmetic number, because the mean of its divisors is an integer number (312722851).

Almost surely, 2^625445701 is an apocalyptic number.

It is an amenable number.

625445701 is a deficient number, since it is larger than the sum of its proper divisors (1).

625445701 is an equidigital number, since it uses as much as digits as its factorization.

625445701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 625445701 is about 25008.9124313713. The cubic root of 625445701 is about 855.1911618438.

The spelling of 625445701 in words is "six hundred twenty-five million, four hundred forty-five thousand, seven hundred one".