52422381 has 12 divisors (see below), whose sum is σ = 82605120. Its totient is φ = 31771080.

The previous prime is 52422379. The next prime is 52422397. The reversal of 52422381 is 18322425.

It is not a de Polignac number, because 52422381 - 2¹ = 52422379 is a prime.

It is a super-2 number, since 2×52422381² = 5496212059418322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52422301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264661 + ... + 264858.

It is an arithmetic number, because the mean of its divisors is an integer number (6883760).

Almost surely, 2^52422381 is an apocalyptic number.

It is an amenable number.

52422381 is a deficient number, since it is larger than the sum of its proper divisors (30182739).

52422381 is a wasteful number, since it uses less digits than its factorization.

52422381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529536 (or 529533 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 52422381 is about 7240.3301720294. The cubic root of 52422381 is about 374.2589953969.

The spelling of 52422381 in words is "fifty-two million, four hundred twenty-two thousand, three hundred eighty-one".