53481131 has 4 divisors (see below), whose sum is σ = 58343064. Its totient is φ = 48619200.

The previous prime is 53481119. The next prime is 53481137. The reversal of 53481131 is 13118435.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53481131 is a prime.

It is a super-2 number, since 2×53481131² = 5720462746078322, 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 53481131.

It is not an unprimeable number, because it can be changed into a prime (53481137) 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, 2430950 + ... + 2430971.

It is an arithmetic number, because the mean of its divisors is an integer number (14585766).

Almost surely, 2^53481131 is an apocalyptic number.

53481131 is a deficient number, since it is larger than the sum of its proper divisors (4861933).

53481131 is a wasteful number, since it uses less digits than its factorization.

53481131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861932.

The product of its digits is 1440, while the sum is 26.

The square root of 53481131 is about 7313.0794471276. The cubic root of 53481131 is about 376.7617981797.

Adding to 53481131 its reverse (13118435), we get a palindrome (66599566).

It can be divided in two parts, 53 and 481131, that added together give a palindrome (481184).

The spelling of 53481131 in words is "fifty-three million, four hundred eighty-one thousand, one hundred thirty-one".