52225681 has 4 divisors (see below), whose sum is σ = 52246000. Its totient is φ = 52205364.

The previous prime is 52225651. The next prime is 52225687. The reversal of 52225681 is 18652225.

52225681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52225681 - 2⁷ = 52225553 is a prime.

It is a super-2 number, since 2×52225681² = 5455043511827522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52225687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5631 + ... + 11668.

It is an arithmetic number, because the mean of its divisors is an integer number (13061500).

Almost surely, 2^52225681 is an apocalyptic number.

It is an amenable number.

52225681 is a deficient number, since it is larger than the sum of its proper divisors (20319).

52225681 is a wasteful number, since it uses less digits than its factorization.

52225681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20318.

The product of its digits is 9600, while the sum is 31.

The square root of 52225681 is about 7226.7337712137. The cubic root of 52225681 is about 373.7903087363.

The spelling of 52225681 in words is "fifty-two million, two hundred twenty-five thousand, six hundred eighty-one".