625131653 has 2 divisors, whose sum is σ = 625131654. Its totient is φ = 625131652.

The previous prime is 625131643. The next prime is 625131679. The reversal of 625131653 is 356131526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 460445764 + 164685889 = 21458^2 + 12833^2 .

It is a cyclic number.

It is not a de Polignac number, because 625131653 - 2¹⁰ = 625130629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625131623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312565826 + 312565827.

It is an arithmetic number, because the mean of its divisors is an integer number (312565827).

Almost surely, 2^625131653 is an apocalyptic number.

It is an amenable number.

625131653 is a deficient number, since it is larger than the sum of its proper divisors (1).

625131653 is an equidigital number, since it uses as much as digits as its factorization.

625131653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 32.

The square root of 625131653 is about 25002.6329213545. The cubic root of 625131653 is about 855.0480020472.

The spelling of 625131653 in words is "six hundred twenty-five million, one hundred thirty-one thousand, six hundred fifty-three".