52238181 has 8 divisors (see below), whose sum is σ = 69899904. Its totient is φ = 34700960.

The previous prime is 52238177. The next prime is 52238209. The reversal of 52238181 is 18183225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52238181 - 2² = 52238177 is a prime.

It is a super-2 number, since 2×52238181² = 5457655108377522, 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 (52238111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30141 + ... + 31826.

It is an arithmetic number, because the mean of its divisors is an integer number (8737488).

Almost surely, 2^52238181 is an apocalyptic number.

It is an amenable number.

52238181 is a deficient number, since it is larger than the sum of its proper divisors (17661723).

52238181 is a wasteful number, since it uses less digits than its factorization.

52238181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62251.

The product of its digits is 3840, while the sum is 30.

The square root of 52238181 is about 7227.5985638385. The cubic root of 52238181 is about 373.8201280771.

The spelling of 52238181 in words is "fifty-two million, two hundred thirty-eight thousand, one hundred eighty-one".