72552511 has 8 divisors (see below), whose sum is σ = 75809664. Its totient is φ = 69303960.

The previous prime is 72552509. The next prime is 72552547. The reversal of 72552511 is 11525527.

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 72552511 - 2¹ = 72552509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72552511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72552551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20116 + ... + 23446.

It is an arithmetic number, because the mean of its divisors is an integer number (9476208).

Almost surely, 2^72552511 is an apocalyptic number.

72552511 is a deficient number, since it is larger than the sum of its proper divisors (3257153).

72552511 is a wasteful number, since it uses less digits than its factorization.

72552511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301.

The product of its digits is 3500, while the sum is 28.

The square root of 72552511 is about 8517.7761769138. The cubic root of 72552511 is about 417.0781923159.

The spelling of 72552511 in words is "seventy-two million, five hundred fifty-two thousand, five hundred eleven".