72272057 has 8 divisors (see below), whose sum is σ = 84907200. Its totient is φ = 60647760.

The previous prime is 72272051. The next prime is 72272059. The reversal of 72272057 is 75027227.

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 72272057 - 2⁶ = 72271993 is a prime.

It is a super-2 number, since 2×72272057² = 10446500446022498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72272051) 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, 252557 + ... + 252842.

It is an arithmetic number, because the mean of its divisors is an integer number (10613400).

Almost surely, 2^72272057 is an apocalyptic number.

It is an amenable number.

72272057 is a deficient number, since it is larger than the sum of its proper divisors (12635143).

72272057 is a wasteful number, since it uses less digits than its factorization.

72272057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505423.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 72272057 is about 8501.2973715781. The cubic root of 72272057 is about 416.5400887690.

The spelling of 72272057 in words is "seventy-two million, two hundred seventy-two thousand, fifty-seven".