53996689 has 4 divisors (see below), whose sum is σ = 56838640. Its totient is φ = 51154740.

The previous prime is 53996687. The next prime is 53996693. The reversal of 53996689 is 98669935.

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 a cyclic number.

It is not a de Polignac number, because 53996689 - 2¹ = 53996687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53996681) 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, 1420947 + ... + 1420984.

It is an arithmetic number, because the mean of its divisors is an integer number (14209660).

Almost surely, 2^53996689 is an apocalyptic number.

It is an amenable number.

53996689 is a deficient number, since it is larger than the sum of its proper divisors (2841951).

53996689 is a wasteful number, since it uses less digits than its factorization.

53996689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841950.

The product of its digits is 3149280, while the sum is 55.

The square root of 53996689 is about 7348.2439398811. The cubic root of 53996689 is about 377.9685896280.

The spelling of 53996689 in words is "fifty-three million, nine hundred ninety-six thousand, six hundred eighty-nine".