625835653 has 2 divisors, whose sum is σ = 625835654. Its totient is φ = 625835652.

The previous prime is 625835627. The next prime is 625835659. The reversal of 625835653 is 356538526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444071329 + 181764324 = 21073^2 + 13482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625835653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625835659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312917826 + 312917827.

It is an arithmetic number, because the mean of its divisors is an integer number (312917827).

Almost surely, 2^625835653 is an apocalyptic number.

It is an amenable number.

625835653 is a deficient number, since it is larger than the sum of its proper divisors (1).

625835653 is an equidigital number, since it uses as much as digits as its factorization.

625835653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 43.

The square root of 625835653 is about 25016.7074772041. The cubic root of 625835653 is about 855.3688560443.

The spelling of 625835653 in words is "six hundred twenty-five million, eight hundred thirty-five thousand, six hundred fifty-three".