52472197 has 4 divisors (see below), whose sum is σ = 52495276. Its totient is φ = 52449120.

The previous prime is 52472191. The next prime is 52472201. The reversal of 52472197 is 79127425.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28206721 + 24265476 = 5311^2 + 4926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52472197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52472191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7704 + ... + 12817.

It is an arithmetic number, because the mean of its divisors is an integer number (13123819).

Almost surely, 2^52472197 is an apocalyptic number.

It is an amenable number.

52472197 is a deficient number, since it is larger than the sum of its proper divisors (23079).

52472197 is a wasteful number, since it uses less digits than its factorization.

52472197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23078.

The product of its digits is 35280, while the sum is 37.

The square root of 52472197 is about 7243.7695297407. The cubic root of 52472197 is about 374.3775082863.

The spelling of 52472197 in words is "fifty-two million, four hundred seventy-two thousand, one hundred ninety-seven".