625402741 has 2 divisors, whose sum is σ = 625402742. Its totient is φ = 625402740.

The previous prime is 625402721. The next prime is 625402781. The reversal of 625402741 is 147204526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 356114641 + 269288100 = 18871^2 + 16410^2 .

It is a cyclic number.

It is not a de Polignac number, because 625402741 - 2⁵ = 625402709 is a prime.

It is a super-2 number, since 2×625402741² = 782257176900626162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625402721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312701370 + 312701371.

It is an arithmetic number, because the mean of its divisors is an integer number (312701371).

Almost surely, 2^625402741 is an apocalyptic number.

It is an amenable number.

625402741 is a deficient number, since it is larger than the sum of its proper divisors (1).

625402741 is an equidigital number, since it uses as much as digits as its factorization.

625402741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 625402741 is about 25008.0535228154. The cubic root of 625402741 is about 855.1715812186.

The spelling of 625402741 in words is "six hundred twenty-five million, four hundred two thousand, seven hundred forty-one".