53815984 has 10 divisors (see below), whose sum is σ = 104268500. Its totient is φ = 26907984.

The previous prime is 53815981. The next prime is 53815991. The reversal of 53815984 is 48951835.

It is a plaindrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 53815984.

It is not an unprimeable number, because it can be changed into a prime (53815981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1681734 + ... + 1681765.

It is an arithmetic number, because the mean of its divisors is an integer number (10426850).

Almost surely, 2^53815984 is an apocalyptic number.

It is an amenable number.

53815984 is a deficient number, since it is larger than the sum of its proper divisors (50452516).

53815984 is a wasteful number, since it uses less digits than its factorization.

53815984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363507 (or 3363501 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The square root of 53815984 is about 7335.9378405218. The cubic root of 53815984 is about 377.5464825882.

The spelling of 53815984 in words is "fifty-three million, eight hundred fifteen thousand, nine hundred eighty-four".