52405223325081 has 32 divisors (see below), whose sum is σ = 80712726110208. Its totient is φ = 29891322743040.

The previous prime is 52405223325071. The next prime is 52405223325127. The reversal of 52405223325081 is 18052332250425.

It is a happy number.

It is not a de Polignac number, because 52405223325081 - 2⁷ = 52405223324953 is a prime.

It is a super-2 number, since 2×52405223325081² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52405223325061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13055640 + ... + 16590966.

It is an arithmetic number, because the mean of its divisors is an integer number (2522272690944).

Almost surely, 2^{52405223325081} is an apocalyptic number.

52405223325081 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

52405223325081 is a deficient number, since it is larger than the sum of its proper divisors (28307502785127).

52405223325081 is a wasteful number, since it uses less digits than its factorization.

52405223325081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561781.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 52405223325081 in words is "fifty-two trillion, four hundred five billion, two hundred twenty-three million, three hundred twenty-five thousand, eighty-one".