53026389 has 12 divisors (see below), whose sum is σ = 82485676. Its totient is φ = 32631552.

The previous prime is 53026381. The next prime is 53026409. The reversal of 53026389 is 98362035.

53026389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 28196100 + 24830289 = 5310^2 + 4983^2 .

It is not a de Polignac number, because 53026389 - 2³ = 53026381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53026381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226492 + ... + 226725.

Almost surely, 2^53026389 is an apocalyptic number.

It is an amenable number.

53026389 is a deficient number, since it is larger than the sum of its proper divisors (29459287).

53026389 is a wasteful number, since it uses less digits than its factorization.

53026389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453236 (or 453233 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 53026389 is about 7281.9220676961. The cubic root of 53026389 is about 375.6909076094.

The spelling of 53026389 in words is "fifty-three million, twenty-six thousand, three hundred eighty-nine".