52492281 has 8 divisors (see below), whose sum is σ = 70453824. Its totient is φ = 34762800.

The previous prime is 52492267. The next prime is 52492283. The reversal of 52492281 is 18229425.

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

It is not a de Polignac number, because 52492281 - 2⁵ = 52492249 is a prime.

It is a super-2 number, since 2×52492281² = 5510879129165922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52492283) 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, 57486 + ... + 58391.

It is an arithmetic number, because the mean of its divisors is an integer number (8806728).

Almost surely, 2^52492281 is an apocalyptic number.

It is an amenable number.

52492281 is a deficient number, since it is larger than the sum of its proper divisors (17961543).

52492281 is a wasteful number, since it uses less digits than its factorization.

52492281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116031.

The product of its digits is 11520, while the sum is 33.

The square root of 52492281 is about 7245.1556919089. The cubic root of 52492281 is about 374.4252671580.

The spelling of 52492281 in words is "fifty-two million, four hundred ninety-two thousand, two hundred eighty-one".