53871885 has 48 divisors (see below), whose sum is σ = 98017920. Its totient is φ = 28382400.

The previous prime is 53871869. The next prime is 53871913. The reversal of 53871885 is 58817835.

It is a happy number.

It is not a de Polignac number, because 53871885 - 2⁴ = 53871869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (268800) is a multiple of the sum of its prime factors (560).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53871885.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 122496 + ... + 122934.

It is an arithmetic number, because the mean of its divisors is an integer number (2042040).

Almost surely, 2^53871885 is an apocalyptic number.

It is an amenable number.

53871885 is a deficient number, since it is larger than the sum of its proper divisors (44146035).

53871885 is a wasteful number, since it uses less digits than its factorization.

53871885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 548 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 53871885 is about 7339.7469302422. The cubic root of 53871885 is about 377.6771619944.

It can be divided in two parts, 53871 and 885, that added together give a square (54756 = 234²).

The spelling of 53871885 in words is "fifty-three million, eight hundred seventy-one thousand, eight hundred eighty-five".