72575653 has 4 divisors (see below), whose sum is σ = 73097920. Its totient is φ = 72053388.

The previous prime is 72575627. The next prime is 72575663. The reversal of 72575653 is 35657527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72575653 - 2²⁵ = 39021221 is a prime.

It is a super-3 number, since 3×72575653³ (a number of 25 digits) contains 333 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 (72575663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260925 + ... + 261202.

It is an arithmetic number, because the mean of its divisors is an integer number (18274480).

Almost surely, 2^72575653 is an apocalyptic number.

It is an amenable number.

72575653 is a deficient number, since it is larger than the sum of its proper divisors (522267).

72575653 is a wasteful number, since it uses less digits than its factorization.

72575653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522266.

The product of its digits is 220500, while the sum is 40.

The square root of 72575653 is about 8519.1345217692. The cubic root of 72575653 is about 417.1225326029.

The spelling of 72575653 in words is "seventy-two million, five hundred seventy-five thousand, six hundred fifty-three".