53440232215 has 4 divisors (see below), whose sum is σ = 64128278664. Its totient is φ = 42752185768.

The previous prime is 53440232191. The next prime is 53440232227. The reversal of 53440232215 is 51223204435.

53440232215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 53440232215 - 2²¹ = 53438135063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5344023217 + ... + 5344023226.

It is an arithmetic number, because the mean of its divisors is an integer number (16032069666).

Almost surely, 2^53440232215 is an apocalyptic number.

53440232215 is a deficient number, since it is larger than the sum of its proper divisors (10688046449).

53440232215 is a wasteful number, since it uses less digits than its factorization.

53440232215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10688046448.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 53440232215 in words is "fifty-three billion, four hundred forty million, two hundred thirty-two thousand, two hundred fifteen".