52012197 has 18 divisors (see below), whose sum is σ = 79812018. Its totient is φ = 32633472.

The previous prime is 52012193. The next prime is 52012237. The reversal of 52012197 is 79121025.

It can be written as a sum of positive squares in 3 ways, for example, as 31708161 + 20304036 = 5631^2 + 4506^2 .

It is not a de Polignac number, because 52012197 - 2² = 52012193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52012197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52012193) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7398 + ... + 12599.

It is an arithmetic number, because the mean of its divisors is an integer number (4434001).

Almost surely, 2^52012197 is an apocalyptic number.

It is an amenable number.

52012197 is a deficient number, since it is larger than the sum of its proper divisors (27799821).

52012197 is a wasteful number, since it uses less digits than its factorization.

52012197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20037 (or 20017 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 52012197 is about 7211.9482111285. The cubic root of 52012197 is about 373.2802963738.

The spelling of 52012197 in words is "fifty-two million, twelve thousand, one hundred ninety-seven".