72575319 has 4 divisors (see below), whose sum is σ = 96767096. Its totient is φ = 48383544.

The previous prime is 72575311. The next prime is 72575323. The reversal of 72575319 is 91357527.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 72575319 - 2³ = 72575311 is a prime.

It is a super-2 number, since 2×72575319² = 10534353855903522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72575311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12095884 + ... + 12095889.

It is an arithmetic number, because the mean of its divisors is an integer number (24191774).

Almost surely, 2^72575319 is an apocalyptic number.

72575319 is a deficient number, since it is larger than the sum of its proper divisors (24191777).

72575319 is a wasteful number, since it uses less digits than its factorization.

72575319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24191776.

The product of its digits is 66150, while the sum is 39.

The square root of 72575319 is about 8519.1149188164. The cubic root of 72575319 is about 417.1218927228.

The spelling of 72575319 in words is "seventy-two million, five hundred seventy-five thousand, three hundred nineteen".