72533633527 has 4 divisors (see below), whose sum is σ = 72537728760. Its totient is φ = 72529538296.

The previous prime is 72533633503. The next prime is 72533633569.

72533633527 is nontrivially palindromic in base 10.

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 72533633527 - 2¹¹ = 72533631479 is a prime.

It is a super-2 number, since 2×72533633527² (a number of 23 digits) contains 22 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 (72533633927) 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, 2020933 + ... + 2056510.

It is an arithmetic number, because the mean of its divisors is an integer number (18134432190).

Almost surely, 2^72533633527 is an apocalyptic number.

72533633527 is a deficient number, since it is larger than the sum of its proper divisors (4095233).

72533633527 is a wasteful number, since it uses less digits than its factorization.

72533633527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095232.

The product of its digits is 2381400, while the sum is 46.

The spelling of 72533633527 in words is "seventy-two billion, five hundred thirty-three million, six hundred thirty-three thousand, five hundred twenty-seven".