72575975 has 12 divisors (see below), whose sum is σ = 95288544. Its totient is φ = 54645120.

The previous prime is 72575927. The next prime is 72575977. The reversal of 72575975 is 57957527.

It is not a de Polignac number, because 72575975 - 2¹² = 72571879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72575977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84959 + ... + 85808.

It is an arithmetic number, because the mean of its divisors is an integer number (7940712).

Almost surely, 2^72575975 is an apocalyptic number.

72575975 is a deficient number, since it is larger than the sum of its proper divisors (22712569).

72575975 is a wasteful number, since it uses less digits than its factorization.

72575975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170794 (or 170789 counting only the distinct ones).

The product of its digits is 771750, while the sum is 47.

The square root of 72575975 is about 8519.1534203816. The cubic root of 72575975 is about 417.1231494914.

The spelling of 72575975 in words is "seventy-two million, five hundred seventy-five thousand, nine hundred seventy-five".