53233881 has 4 divisors (see below), whose sum is σ = 70978512. Its totient is φ = 35489252.

The previous prime is 53233853. The next prime is 53233897. The reversal of 53233881 is 18833235.

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 53233881 - 2⁵ = 53233849 is a prime.

It is a super-2 number, since 2×53233881² = 5667692172644322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53233811) 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, 8872311 + ... + 8872316.

It is an arithmetic number, because the mean of its divisors is an integer number (17744628).

Almost surely, 2^53233881 is an apocalyptic number.

It is an amenable number.

53233881 is a deficient number, since it is larger than the sum of its proper divisors (17744631).

53233881 is a wasteful number, since it uses less digits than its factorization.

53233881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17744630.

The product of its digits is 17280, while the sum is 33.

The square root of 53233881 is about 7296.1552203883. The cubic root of 53233881 is about 376.1802953988.

The spelling of 53233881 in words is "fifty-three million, two hundred thirty-three thousand, eight hundred eighty-one".