725533157 has 16 divisors (see below), whose sum is σ = 776563200. Its totient is φ = 675471360.

The previous prime is 725533153. The next prime is 725533163. The reversal of 725533157 is 751335527.

It is a cyclic number.

It is not a de Polignac number, because 725533157 - 2² = 725533153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725533157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725533153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1131557 + ... + 1132197.

It is an arithmetic number, because the mean of its divisors is an integer number (48535200).

Almost surely, 2^725533157 is an apocalyptic number.

It is an amenable number.

725533157 is a deficient number, since it is larger than the sum of its proper divisors (51030043).

725533157 is a wasteful number, since it uses less digits than its factorization.

725533157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276.

The product of its digits is 110250, while the sum is 38.

The square root of 725533157 is about 26935.7226931078. The cubic root of 725533157 is about 898.5710480568.

The spelling of 725533157 in words is "seven hundred twenty-five million, five hundred thirty-three thousand, one hundred fifty-seven".