52858581 has 4 divisors (see below), whose sum is σ = 70478112. Its totient is φ = 35239052.

The previous prime is 52858549. The next prime is 52858583. The reversal of 52858581 is 18585825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52858581 - 2⁵ = 52858549 is a prime.

It is a super-2 number, since 2×52858581² = 5588059170667122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52858583) 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, 8809761 + ... + 8809766.

It is an arithmetic number, because the mean of its divisors is an integer number (17619528).

Almost surely, 2^52858581 is an apocalyptic number.

It is an amenable number.

52858581 is a deficient number, since it is larger than the sum of its proper divisors (17619531).

52858581 is a wasteful number, since it uses less digits than its factorization.

52858581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17619530.

The product of its digits is 128000, while the sum is 42.

The square root of 52858581 is about 7270.3907047696. The cubic root of 52858581 is about 375.2941833782.

The spelling of 52858581 in words is "fifty-two million, eight hundred fifty-eight thousand, five hundred eighty-one".