53689231 has 4 divisors (see below), whose sum is σ = 56515000. Its totient is φ = 50863464.

The previous prime is 53689219. The next prime is 53689243. The reversal of 53689231 is 13298635.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (53689219) and next prime (53689243).

It is a cyclic number.

It is not a de Polignac number, because 53689231 - 2¹³ = 53681039 is a prime.

It is a super-2 number, since 2×53689231² = 5765067050742722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53689271) 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, 1412856 + ... + 1412893.

It is an arithmetic number, because the mean of its divisors is an integer number (14128750).

Almost surely, 2^53689231 is an apocalyptic number.

53689231 is a deficient number, since it is larger than the sum of its proper divisors (2825769).

53689231 is a wasteful number, since it uses less digits than its factorization.

53689231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825768.

The product of its digits is 38880, while the sum is 37.

The square root of 53689231 is about 7327.2935658400. The cubic root of 53689231 is about 377.2498373282.

The spelling of 53689231 in words is "fifty-three million, six hundred eighty-nine thousand, two hundred thirty-one".