72635253 has 4 divisors (see below), whose sum is σ = 96847008. Its totient is φ = 48423500.

The previous prime is 72635243. The next prime is 72635267. The reversal of 72635253 is 35253627.

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 72635253 - 2⁵ = 72635221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72635243) 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, 12105873 + ... + 12105878.

It is an arithmetic number, because the mean of its divisors is an integer number (24211752).

Almost surely, 2^72635253 is an apocalyptic number.

It is an amenable number.

72635253 is a deficient number, since it is larger than the sum of its proper divisors (24211755).

72635253 is a wasteful number, since it uses less digits than its factorization.

72635253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24211754.

The product of its digits is 37800, while the sum is 33.

The square root of 72635253 is about 8522.6318118290. The cubic root of 72635253 is about 417.2366833765.

The spelling of 72635253 in words is "seventy-two million, six hundred thirty-five thousand, two hundred fifty-three".