53334431 has 4 divisors (see below), whose sum is σ = 53349192. Its totient is φ = 53319672.

The previous prime is 53334409. The next prime is 53334433. The reversal of 53334431 is 13443335.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13443335 = 5 ⋅2688667.

It is a cyclic number.

It is not a de Polignac number, because 53334431 - 2²² = 49140127 is a prime.

It is a super-2 number, since 2×53334431² = 5689123060187522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53334431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53334433) 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, 2096 + ... + 10538.

It is an arithmetic number, because the mean of its divisors is an integer number (13337298).

Almost surely, 2^53334431 is an apocalyptic number.

53334431 is a deficient number, since it is larger than the sum of its proper divisors (14761).

53334431 is an equidigital number, since it uses as much as digits as its factorization.

53334431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14760.

The product of its digits is 6480, while the sum is 26.

The square root of 53334431 is about 7303.0425851148. The cubic root of 53334431 is about 376.4169938944.

Adding to 53334431 its reverse (13443335), we get a palindrome (66777766).

The spelling of 53334431 in words is "fifty-three million, three hundred thirty-four thousand, four hundred thirty-one".