72525717 has 24 divisors (see below), whose sum is σ = 120300960. Its totient is φ = 41640480.

The previous prime is 72525707. The next prime is 72525731. The reversal of 72525717 is 71752527.

It is not a de Polignac number, because 72525717 - 2⁷ = 72525589 is a prime.

It is a super-3 number, since 3×72525717³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72525707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17398 + ... + 21159.

It is an arithmetic number, because the mean of its divisors is an integer number (5012540).

Almost surely, 2^72525717 is an apocalyptic number.

It is an amenable number.

72525717 is a deficient number, since it is larger than the sum of its proper divisors (47775243).

72525717 is a wasteful number, since it uses less digits than its factorization.

72525717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38593 (or 38590 counting only the distinct ones).

The product of its digits is 34300, while the sum is 36.

The square root of 72525717 is about 8516.2032033060. The cubic root of 72525717 is about 417.0268429833.

The spelling of 72525717 in words is "seventy-two million, five hundred twenty-five thousand, seven hundred seventeen".