72542573 has 8 divisors (see below), whose sum is σ = 76477440. Its totient is φ = 68707440.

The previous prime is 72542567. The next prime is 72542599. The reversal of 72542573 is 37524527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72542573 - 2⁴ = 72542557 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 (72542563) 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, 23438 + ... + 26351.

It is an arithmetic number, because the mean of its divisors is an integer number (9559680).

Almost surely, 2^72542573 is an apocalyptic number.

It is an amenable number.

72542573 is a deficient number, since it is larger than the sum of its proper divisors (3934867).

72542573 is a wasteful number, since it uses less digits than its factorization.

72542573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49867.

The product of its digits is 58800, while the sum is 35.

The square root of 72542573 is about 8517.1927887069. The cubic root of 72542573 is about 417.0591481216.

The spelling of 72542573 in words is "seventy-two million, five hundred forty-two thousand, five hundred seventy-three".