72775052 has 12 divisors (see below), whose sum is σ = 145550160. Its totient is φ = 31189296.

The previous prime is 72775039. The next prime is 72775061. The reversal of 72775052 is 25057727.

72775052 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1299527 + ... + 1299582.

It is an arithmetic number, because the mean of its divisors is an integer number (12129180).

Almost surely, 2^72775052 is an apocalyptic number.

It is an amenable number.

72775052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72775052 is a wasteful number, since it uses less digits than its factorization.

72775052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599120 (or 2599118 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 72775052 is about 8530.8295024575. The cubic root of 72775052 is about 417.5041930089.

The spelling of 72775052 in words is "seventy-two million, seven hundred seventy-five thousand, fifty-two".