52861197 has 24 divisors (see below), whose sum is σ = 73974432. Its totient is φ = 33566400.

The previous prime is 52861189. The next prime is 52861201. The reversal of 52861197 is 79116825.

It is not a de Polignac number, because 52861197 - 2³ = 52861189 is a prime.

It is a super-2 number, since 2×52861197² = 5588612296545618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52861117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250422 + ... + 250632.

It is an arithmetic number, because the mean of its divisors is an integer number (3082268).

Almost surely, 2^52861197 is an apocalyptic number.

It is an amenable number.

52861197 is a deficient number, since it is larger than the sum of its proper divisors (21113235).

52861197 is a wasteful number, since it uses less digits than its factorization.

52861197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 312 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 52861197 is about 7270.5706103441. The cubic root of 52861197 is about 375.3003744474.

It can be divided in two parts, 5286119 and 7, that added together give a triangular number (5286126 = T₃₂₅₁).

The spelling of 52861197 in words is "fifty-two million, eight hundred sixty-one thousand, one hundred ninety-seven".