625957403 has 2 divisors, whose sum is σ = 625957404. Its totient is φ = 625957402.

The previous prime is 625957333. The next prime is 625957411. The reversal of 625957403 is 304759526.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 625957403 - 2¹⁰ = 625956379 is a prime.

It is not a weakly prime, because it can be changed into another prime (625957433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312978701 + 312978702.

It is an arithmetic number, because the mean of its divisors is an integer number (312978702).

Almost surely, 2^625957403 is an apocalyptic number.

625957403 is a deficient number, since it is larger than the sum of its proper divisors (1).

625957403 is an equidigital number, since it uses as much as digits as its factorization.

625957403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 625957403 is about 25019.1407326471. The cubic root of 625957403 is about 855.4243202359.

The spelling of 625957403 in words is "six hundred twenty-five million, nine hundred fifty-seven thousand, four hundred three".