52197291 has 10 divisors (see below), whose sum is σ = 77973852. Its totient is φ = 34798140.

The previous prime is 52197253. The next prime is 52197311. The reversal of 52197291 is 19279125.

It is not a de Polignac number, because 52197291 - 2¹⁰ = 52196267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52197251) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 322125 + ... + 322286.

Almost surely, 2^52197291 is an apocalyptic number.

52197291 is a deficient number, since it is larger than the sum of its proper divisors (25776561).

52197291 is an equidigital number, since it uses as much as digits as its factorization.

52197291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644423 (or 644414 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 52197291 is about 7224.7692696722. The cubic root of 52197291 is about 373.7225653699.

The spelling of 52197291 in words is "fifty-two million, one hundred ninety-seven thousand, two hundred ninety-one".