53258889 has 4 divisors (see below), whose sum is σ = 71011856. Its totient is φ = 35505924.

The previous prime is 53258879. The next prime is 53258921. The reversal of 53258889 is 98885235.

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 not a de Polignac number, because 53258889 - 2⁵ = 53258857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53258809) 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, 8876479 + ... + 8876484.

It is an arithmetic number, because the mean of its divisors is an integer number (17752964).

Almost surely, 2^53258889 is an apocalyptic number.

It is an amenable number.

53258889 is a deficient number, since it is larger than the sum of its proper divisors (17752967).

53258889 is a wasteful number, since it uses less digits than its factorization.

53258889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17752966.

The product of its digits is 691200, while the sum is 48.

The square root of 53258889 is about 7297.8687984918. The cubic root of 53258889 is about 376.2391930024.

The spelling of 53258889 in words is "fifty-three million, two hundred fifty-eight thousand, eight hundred eighty-nine".