53158216 has 16 divisors (see below), whose sum is σ = 99768240. Its totient is φ = 26553360.

The previous prime is 53158199. The next prime is 53158223. The reversal of 53158216 is 61285135.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7755 + ... + 12901.

It is an arithmetic number, because the mean of its divisors is an integer number (6235515).

Almost surely, 2^53158216 is an apocalyptic number.

It is an amenable number.

53158216 is a deficient number, since it is larger than the sum of its proper divisors (46610024).

53158216 is a wasteful number, since it uses less digits than its factorization.

53158216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6444 (or 6440 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 53158216 is about 7290.9681113004. The cubic root of 53158216 is about 376.0019805237.

It can be divided in two parts, 5315 and 8216, that added together give a palindrome (13531).

The spelling of 53158216 in words is "fifty-three million, one hundred fifty-eight thousand, two hundred sixteen".