625201697 has 2 divisors, whose sum is σ = 625201698. Its totient is φ = 625201696.

The previous prime is 625201667. The next prime is 625201699. The reversal of 625201697 is 796102526.

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., 625200016 + 1681 = 25004^2 + 41^2 .

It is a cyclic number.

It is not a de Polignac number, because 625201697 - 2¹⁰ = 625200673 is a prime.

Together with 625201699, it forms a pair of twin primes.

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 625201697.

It is not a weakly prime, because it can be changed into another prime (625201699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312600848 + 312600849.

It is an arithmetic number, because the mean of its divisors is an integer number (312600849).

Almost surely, 2^625201697 is an apocalyptic number.

It is an amenable number.

625201697 is a deficient number, since it is larger than the sum of its proper divisors (1).

625201697 is an equidigital number, since it uses as much as digits as its factorization.

625201697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 625201697 is about 25004.0336145991. The cubic root of 625201697 is about 855.0799359847.

The spelling of 625201697 in words is "six hundred twenty-five million, two hundred one thousand, six hundred ninety-seven".