625111472641 has 2 divisors, whose sum is σ = 625111472642. Its totient is φ = 625111472640.

The previous prime is 625111472509. The next prime is 625111472701. The reversal of 625111472641 is 146274111526.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 605796032241 + 19315440400 = 778329^2 + 138980^2 .

It is a cyclic number.

It is not a de Polignac number, because 625111472641 - 2³⁵ = 590751734273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 625111472594 and 625111472603.

It is not a weakly prime, because it can be changed into another prime (625111422641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312555736320 + 312555736321.

It is an arithmetic number, because the mean of its divisors is an integer number (312555736321).

Almost surely, 2^625111472641 is an apocalyptic number.

It is an amenable number.

625111472641 is a deficient number, since it is larger than the sum of its proper divisors (1).

625111472641 is an equidigital number, since it uses as much as digits as its factorization.

625111472641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The spelling of 625111472641 in words is "six hundred twenty-five billion, one hundred eleven million, four hundred seventy-two thousand, six hundred forty-one".