72832551 has 16 divisors (see below), whose sum is σ = 107522688. Its totient is φ = 43480800.

The previous prime is 72832537. The next prime is 72832553. The reversal of 72832551 is 15523827.

It is not a de Polignac number, because 72832551 - 2¹⁴ = 72816167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72832553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14260 + ... + 18681.

It is an arithmetic number, because the mean of its divisors is an integer number (6720168).

Almost surely, 2^72832551 is an apocalyptic number.

72832551 is a deficient number, since it is larger than the sum of its proper divisors (34690137).

72832551 is a wasteful number, since it uses less digits than its factorization.

72832551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33022.

The product of its digits is 16800, while the sum is 33.

The square root of 72832551 is about 8534.1989079233. The cubic root of 72832551 is about 417.6141196636.

The spelling of 72832551 in words is "seventy-two million, eight hundred thirty-two thousand, five hundred fifty-one".