52272991 has 8 divisors (see below), whose sum is σ = 53643744. Its totient is φ = 50906880.

The previous prime is 52272967. The next prime is 52273007. The reversal of 52272991 is 19927225.

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 52272991 - 2⁷ = 52272863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52272991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52272091) 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, 39655 + ... + 40951.

It is an arithmetic number, because the mean of its divisors is an integer number (6705468).

Almost surely, 2^52272991 is an apocalyptic number.

52272991 is a deficient number, since it is larger than the sum of its proper divisors (1370753).

52272991 is a wasteful number, since it uses less digits than its factorization.

52272991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321.

The product of its digits is 22680, while the sum is 37.

The square root of 52272991 is about 7230.0062932199. The cubic root of 52272991 is about 373.9031439163.

The spelling of 52272991 in words is "fifty-two million, two hundred seventy-two thousand, nine hundred ninety-one".