52243581 has 16 divisors (see below), whose sum is σ = 76763456. Its totient is φ = 31401216.

The previous prime is 52243573. The next prime is 52243613. The reversal of 52243581 is 18534225.

It is not a de Polignac number, because 52243581 - 2³ = 52243573 is a prime.

It is a super-2 number, since 2×52243581² = 5458783511407122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52243571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13900 + ... + 17253.

It is an arithmetic number, because the mean of its divisors is an integer number (4797716).

Almost surely, 2^52243581 is an apocalyptic number.

It is an amenable number.

52243581 is a deficient number, since it is larger than the sum of its proper divisors (24519875).

52243581 is a wasteful number, since it uses less digits than its factorization.

52243581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31212.

The product of its digits is 9600, while the sum is 30.

The square root of 52243581 is about 7227.9721222484. The cubic root of 52243581 is about 373.8330085609.

The spelling of 52243581 in words is "fifty-two million, two hundred forty-three thousand, five hundred eighty-one".