72253606363 has 4 divisors (see below), whose sum is σ = 76503818520. Its totient is φ = 68003394208.

The previous prime is 72253606349. The next prime is 72253606387. The reversal of 72253606363 is 36360635227.

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

It is a cyclic number.

It is not a de Polignac number, because 72253606363 - 2²⁵ = 72220051931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72253606303) 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, 2125106053 + ... + 2125106086.

It is an arithmetic number, because the mean of its divisors is an integer number (19125954630).

Almost surely, 2^72253606363 is an apocalyptic number.

72253606363 is a deficient number, since it is larger than the sum of its proper divisors (4250212157).

72253606363 is a wasteful number, since it uses less digits than its factorization.

72253606363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250212156.

The product of its (nonzero) digits is 816480, while the sum is 43.

The spelling of 72253606363 in words is "seventy-two billion, two hundred fifty-three million, six hundred six thousand, three hundred sixty-three".