53986863 has 16 divisors (see below), whose sum is σ = 82377216. Its totient is φ = 30807840.

The previous prime is 53986853. The next prime is 53986897. The reversal of 53986863 is 36868935.

It is not a de Polignac number, because 53986863 - 2⁵ = 53986831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53986843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21070 + ... + 23492.

It is an arithmetic number, because the mean of its divisors is an integer number (5148576).

Almost surely, 2^53986863 is an apocalyptic number.

53986863 is a deficient number, since it is larger than the sum of its proper divisors (28390353).

53986863 is a wasteful number, since it uses less digits than its factorization.

53986863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494.

The product of its digits is 933120, while the sum is 48.

The square root of 53986863 is about 7347.5753143469. The cubic root of 53986863 is about 377.9456614032.

The spelling of 53986863 in words is "fifty-three million, nine hundred eighty-six thousand, eight hundred sixty-three".