72249575 has 24 divisors (see below), whose sum is σ = 96904512. Its totient is φ = 53227520.

The previous prime is 72249539. The next prime is 72249581. The reversal of 72249575 is 57594227.

It is not a de Polignac number, because 72249575 - 2⁶ = 72249511 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18167 + ... + 21783.

It is an arithmetic number, because the mean of its divisors is an integer number (4037688).

Almost surely, 2^72249575 is an apocalyptic number.

72249575 is a deficient number, since it is larger than the sum of its proper divisors (24654937).

72249575 is a wasteful number, since it uses less digits than its factorization.

72249575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691 (or 3686 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The square root of 72249575 is about 8499.9749999632. The cubic root of 72249575 is about 416.4968926114.

The spelling of 72249575 in words is "seventy-two million, two hundred forty-nine thousand, five hundred seventy-five".