53516412 has 36 divisors (see below), whose sum is σ = 136805760. Its totient is φ = 17637312.

The previous prime is 53516399. The next prime is 53516413. The reversal of 53516412 is 21461535.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53516413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5148 + ... + 11555.

It is an arithmetic number, because the mean of its divisors is an integer number (3800160).

Almost surely, 2^53516412 is an apocalyptic number.

It is an amenable number.

53516412 is an abundant number, since it is smaller than the sum of its proper divisors (83289348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53516412 is a wasteful number, since it uses less digits than its factorization.

53516412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16802 (or 16797 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 53516412 is about 7315.4912343601. The cubic root of 53516412 is about 376.8446287085.

Adding to 53516412 its reverse (21461535), we get a palindrome (74977947).

The spelling of 53516412 in words is "fifty-three million, five hundred sixteen thousand, four hundred twelve".