53431571 has 4 divisors (see below), whose sum is σ = 54108000. Its totient is φ = 52755144.

The previous prime is 53431531. The next prime is 53431597. The reversal of 53431571 is 17513435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17513435 = 5 ⋅3502687.

It is a cyclic number.

It is not a de Polignac number, because 53431571 - 2¹⁰ = 53430547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53431531) 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, 338096 + ... + 338253.

It is an arithmetic number, because the mean of its divisors is an integer number (13527000).

Almost surely, 2^53431571 is an apocalyptic number.

53431571 is a deficient number, since it is larger than the sum of its proper divisors (676429).

53431571 is an equidigital number, since it uses as much as digits as its factorization.

53431571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676428.

The product of its digits is 6300, while the sum is 29.

The square root of 53431571 is about 7309.6902123141. The cubic root of 53431571 is about 376.6453827568.

The spelling of 53431571 in words is "fifty-three million, four hundred thirty-one thousand, five hundred seventy-one".