16052431 has 4 divisors (see below), whose sum is σ = 16092864. Its totient is φ = 16012000.

The previous prime is 16052429. The next prime is 16052479. The reversal of 16052431 is 13425061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13425061 = 13 ⋅1032697.

It is a cyclic number.

It is not a de Polignac number, because 16052431 - 2¹ = 16052429 is a prime.

It is a super-2 number, since 2×16052431² = 515361082019522, 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 (16052411) 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, 19615 + ... + 20416.

It is an arithmetic number, because the mean of its divisors is an integer number (4023216).

Almost surely, 2^16052431 is an apocalyptic number.

16052431 is a deficient number, since it is larger than the sum of its proper divisors (40433).

16052431 is an equidigital number, since it uses as much as digits as its factorization.

16052431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40432.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16052431 is about 4006.5485146195. The cubic root of 16052431 is about 252.2591553734.

Adding to 16052431 its reverse (13425061), we get a palindrome (29477492).

The spelling of 16052431 in words is "sixteen million, fifty-two thousand, four hundred thirty-one".