725629117 has 2 divisors, whose sum is σ = 725629118. Its totient is φ = 725629116.

The previous prime is 725629103. The next prime is 725629153. The reversal of 725629117 is 711926527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640140601 + 85488516 = 25301^2 + 9246^2 .

It is a cyclic number.

It is not a de Polignac number, because 725629117 - 2¹⁵ = 725596349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725629117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725629217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362814558 + 362814559.

It is an arithmetic number, because the mean of its divisors is an integer number (362814559).

Almost surely, 2^725629117 is an apocalyptic number.

It is an amenable number.

725629117 is a deficient number, since it is larger than the sum of its proper divisors (1).

725629117 is an equidigital number, since it uses as much as digits as its factorization.

725629117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 40.

The square root of 725629117 is about 26937.5039118327. The cubic root of 725629117 is about 898.6106617191.

The spelling of 725629117 in words is "seven hundred twenty-five million, six hundred twenty-nine thousand, one hundred seventeen".