53189489 has 4 divisors (see below), whose sum is σ = 53468160. Its totient is φ = 52910820.

The previous prime is 53189483. The next prime is 53189533. The reversal of 53189489 is 98498135.

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 53189489 - 2¹² = 53185393 is a prime.

It is a super-2 number, since 2×53189489² = 5658243480162242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53189483) 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, 139049 + ... + 139430.

It is an arithmetic number, because the mean of its divisors is an integer number (13367040).

Almost surely, 2^53189489 is an apocalyptic number.

It is an amenable number.

53189489 is a deficient number, since it is larger than the sum of its proper divisors (278671).

53189489 is a wasteful number, since it uses less digits than its factorization.

53189489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278670.

The product of its digits is 311040, while the sum is 47.

The square root of 53189489 is about 7293.1124357163. The cubic root of 53189489 is about 376.0757001084.

The spelling of 53189489 in words is "fifty-three million, one hundred eighty-nine thousand, four hundred eighty-nine".