72332553 has 8 divisors (see below), whose sum is σ = 96660000. Its totient is φ = 48113408.

The previous prime is 72332549. The next prime is 72332573. The reversal of 72332553 is 35523327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72332553 - 2² = 72332549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72332553.

It is not an unprimeable number, because it can be changed into a prime (72332573) 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 7 ways as a sum of consecutive naturals, for example, 25503 + ... + 28196.

It is an arithmetic number, because the mean of its divisors is an integer number (12082500).

Almost surely, 2^72332553 is an apocalyptic number.

It is an amenable number.

72332553 is a deficient number, since it is larger than the sum of its proper divisors (24327447).

72332553 is a wasteful number, since it uses less digits than its factorization.

72332553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54151.

The product of its digits is 18900, while the sum is 30.

The square root of 72332553 is about 8504.8546724797. The cubic root of 72332553 is about 416.6562792788.

The spelling of 72332553 in words is "seventy-two million, three hundred thirty-two thousand, five hundred fifty-three".