53142431 has 8 divisors (see below), whose sum is σ = 54300480. Its totient is φ = 51996672.

The previous prime is 53142389. The next prime is 53142433. The reversal of 53142431 is 13424135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53142431 - 2²² = 48948127 is a prime.

It is a super-2 number, since 2×53142431² = 5648235945179522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53142397 and 53142406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53142433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5951 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (6787560).

Almost surely, 2^53142431 is an apocalyptic number.

53142431 is a deficient number, since it is larger than the sum of its proper divisors (1158049).

53142431 is a wasteful number, since it uses less digits than its factorization.

53142431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6145.

The product of its digits is 1440, while the sum is 23.

The square root of 53142431 is about 7289.8855272219. The cubic root of 53142431 is about 375.9647596933.

Adding to 53142431 its reverse (13424135), we get a palindrome (66566566).

The spelling of 53142431 in words is "fifty-three million, one hundred forty-two thousand, four hundred thirty-one".