725253237 has 16 divisors (see below), whose sum is σ = 1131000000. Its totient is φ = 458054352.

The previous prime is 725253233. The next prime is 725253241. The reversal of 725253237 is 732352527.

725253237 is a `hidden beast` number, since 72 + 52 + 532 + 3 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (725253233) and next prime (725253241).

It is not a de Polignac number, because 725253237 - 2² = 725253233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725253233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706362 + ... + 707387.

It is an arithmetic number, because the mean of its divisors is an integer number (70687500).

Almost surely, 2^725253237 is an apocalyptic number.

It is an amenable number.

725253237 is a deficient number, since it is larger than the sum of its proper divisors (405746763).

725253237 is a wasteful number, since it uses less digits than its factorization.

725253237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413777 (or 1413771 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 725253237 is about 26930.5261181433. The cubic root of 725253237 is about 898.4554731126.

The spelling of 725253237 in words is "seven hundred twenty-five million, two hundred fifty-three thousand, two hundred thirty-seven".