725533117 has 4 divisors (see below), whose sum is σ = 727478620. Its totient is φ = 723587616.

The previous prime is 725533099. The next prime is 725533121. The reversal of 725533117 is 711335527.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 313077636 + 412455481 = 17694^2 + 20309^2 .

It is a cyclic number.

It is not a de Polignac number, because 725533117 - 2⁷ = 725532989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725533177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972192 + ... + 972937.

It is an arithmetic number, because the mean of its divisors is an integer number (181869655).

Almost surely, 2^725533117 is an apocalyptic number.

It is an amenable number.

725533117 is a deficient number, since it is larger than the sum of its proper divisors (1945503).

725533117 is a wasteful number, since it uses less digits than its factorization.

725533117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945502.

The product of its digits is 22050, while the sum is 34.

The square root of 725533117 is about 26935.7219505994. The cubic root of 725533117 is about 898.5710315435.

The spelling of 725533117 in words is "seven hundred twenty-five million, five hundred thirty-three thousand, one hundred seventeen".