72547375 has 8 divisors (see below), whose sum is σ = 90539280. Its totient is φ = 58037800.

The previous prime is 72547373. The next prime is 72547393. The reversal of 72547375 is 57374527.

It is a happy number.

It is not a de Polignac number, because 72547375 - 2¹ = 72547373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72547373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290065 + ... + 290314.

It is an arithmetic number, because the mean of its divisors is an integer number (11317410).

Almost surely, 2^72547375 is an apocalyptic number.

72547375 is a deficient number, since it is larger than the sum of its proper divisors (17991905).

72547375 is an equidigital number, since it uses as much as digits as its factorization.

72547375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580394 (or 580384 counting only the distinct ones).

The product of its digits is 205800, while the sum is 40.

The square root of 72547375 is about 8517.4746844355. The cubic root of 72547375 is about 417.0683504137.

The spelling of 72547375 in words is "seventy-two million, five hundred forty-seven thousand, three hundred seventy-five".