72533110453553 has 4 divisors (see below), whose sum is σ = 72654200788800. Its totient is φ = 72412020118308.

The previous prime is 72533110453537. The next prime is 72533110453561. The reversal of 72533110453553 is 35535401133527.

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 72533110453553 - 2⁴ = 72533110453537 is a prime.

It is a super-2 number, since 2×72533110453553² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72533110453498 and 72533110453507.

It is not an unprimeable number, because it can be changed into a prime (72533110453523) 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, 60545166725 + ... + 60545167922.

It is an arithmetic number, because the mean of its divisors is an integer number (18163550197200).

Almost surely, 2^{72533110453553} is an apocalyptic number.

It is an amenable number.

72533110453553 is a deficient number, since it is larger than the sum of its proper divisors (121090335247).

72533110453553 is a wasteful number, since it uses less digits than its factorization.

72533110453553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121090335246.

The product of its (nonzero) digits is 2835000, while the sum is 47.

The spelling of 72533110453553 in words is "seventy-two trillion, five hundred thirty-three billion, one hundred ten million, four hundred fifty-three thousand, five hundred fifty-three".