52196181 has 4 divisors (see below), whose sum is σ = 69594912. Its totient is φ = 34797452.

The previous prime is 52196167. The next prime is 52196189. The reversal of 52196181 is 18169125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52196181 - 2⁶ = 52196117 is a prime.

It is a super-2 number, since 2×52196181² = 5448882621969522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52196189) 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, 8699361 + ... + 8699366.

It is an arithmetic number, because the mean of its divisors is an integer number (17398728).

Almost surely, 2^52196181 is an apocalyptic number.

It is an amenable number.

52196181 is a deficient number, since it is larger than the sum of its proper divisors (17398731).

52196181 is a wasteful number, since it uses less digits than its factorization.

52196181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17398730.

The product of its digits is 4320, while the sum is 33.

The square root of 52196181 is about 7224.6924502016. The cubic root of 52196181 is about 373.7199162223.

The spelling of 52196181 in words is "fifty-two million, one hundred ninety-six thousand, one hundred eighty-one".