53915589 has 24 divisors (see below), whose sum is σ = 95851392. Its totient is φ = 28438560.

The previous prime is 53915579. The next prime is 53915591. The reversal of 53915589 is 98551935.

53915589 is a `hidden beast` number, since 5 + 3 + 91 + 558 + 9 = 666.

It is not a de Polignac number, because 53915589 - 2⁴ = 53915573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53915569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32097 + ... + 33734.

It is an arithmetic number, because the mean of its divisors is an integer number (3993808).

Almost surely, 2^53915589 is an apocalyptic number.

It is an amenable number.

53915589 is a deficient number, since it is larger than the sum of its proper divisors (41935803).

53915589 is a wasteful number, since it uses less digits than its factorization.

53915589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65857 (or 65854 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 53915589 is about 7342.7235410303. The cubic root of 53915589 is about 377.7792656003.

The spelling of 53915589 in words is "fifty-three million, nine hundred fifteen thousand, five hundred eighty-nine".