52125881 has 4 divisors (see below), whose sum is σ = 52180212. Its totient is φ = 52071552.

The previous prime is 52125833. The next prime is 52125907. The reversal of 52125881 is 18852125.

It is a happy number.

52125881 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.

It can be written as a sum of positive squares in 2 ways, for example, as 47886400 + 4239481 = 6920^2 + 2059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52125881 is a prime.

It is a super-2 number, since 2×52125881² = 5434214940052322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52122881) 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, 25700 + ... + 27653.

It is an arithmetic number, because the mean of its divisors is an integer number (13045053).

Almost surely, 2^52125881 is an apocalyptic number.

It is an amenable number.

52125881 is a deficient number, since it is larger than the sum of its proper divisors (54331).

52125881 is an equidigital number, since it uses as much as digits as its factorization.

52125881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54330.

The product of its digits is 6400, while the sum is 32.

The square root of 52125881 is about 7219.8255519091. The cubic root of 52125881 is about 373.5520603025.

The spelling of 52125881 in words is "fifty-two million, one hundred twenty-five thousand, eight hundred eighty-one".