53803863 has 12 divisors (see below), whose sum is σ = 78519168. Its totient is φ = 35498880.

The previous prime is 53803859. The next prime is 53803889. The reversal of 53803863 is 36830835.

It is not a de Polignac number, because 53803863 - 2² = 53803859 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53803823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29943 + ... + 31688.

It is an arithmetic number, because the mean of its divisors is an integer number (6543264).

Almost surely, 2^53803863 is an apocalyptic number.

53803863 is a deficient number, since it is larger than the sum of its proper divisors (24715305).

53803863 is a wasteful number, since it uses less digits than its factorization.

53803863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61734 (or 61731 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 53803863 is about 7335.1116555919. Note that the first 3 decimals coincide. The cubic root of 53803863 is about 377.5181354678.

The spelling of 53803863 in words is "fifty-three million, eight hundred three thousand, eight hundred sixty-three".