53616986 has 8 divisors (see below), whose sum is σ = 80457300. Its totient is φ = 26797888.

The previous prime is 53616943. The next prime is 53617007. The reversal of 53616986 is 68961635.

It can be written as a sum of positive squares in 2 ways, for example, as 49434961 + 4182025 = 7031^2 + 2045^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5090 + ... + 11538.

Almost surely, 2^53616986 is an apocalyptic number.

53616986 is a deficient number, since it is larger than the sum of its proper divisors (26840314).

53616986 is a wasteful number, since it uses less digits than its factorization.

53616986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10608.

The product of its digits is 233280, while the sum is 44.

The square root of 53616986 is about 7322.3620505954. The cubic root of 53616986 is about 377.0805504416.

The spelling of 53616986 in words is "fifty-three million, six hundred sixteen thousand, nine hundred eighty-six".