52238531 has 4 divisors (see below), whose sum is σ = 52277952. Its totient is φ = 52199112.

The previous prime is 52238521. The next prime is 52238533. The reversal of 52238531 is 13583225.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52238531 is a prime.

It is a super-2 number, since 2×52238531² = 5457728242075922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52238494 and 52238503.

It is not an unprimeable number, because it can be changed into a prime (52238533) 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, 17651 + ... + 20396.

It is an arithmetic number, because the mean of its divisors is an integer number (13069488).

Almost surely, 2^52238531 is an apocalyptic number.

52238531 is a deficient number, since it is larger than the sum of its proper divisors (39421).

52238531 is a wasteful number, since it uses less digits than its factorization.

52238531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39420.

The product of its digits is 7200, while the sum is 29.

The square root of 52238531 is about 7227.6227765428. The cubic root of 52238531 is about 373.8209629502.

The spelling of 52238531 in words is "fifty-two million, two hundred thirty-eight thousand, five hundred thirty-one".