53885491 has 8 divisors (see below), whose sum is σ = 58839984. Its totient is φ = 48940320.

The previous prime is 53885483. The next prime is 53885543. The reversal of 53885491 is 19458835.

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

It is not a de Polignac number, because 53885491 - 2³ = 53885483 is a prime.

It is a super-2 number, since 2×53885491² = 5807292280622162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53885401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16225 + ... + 19261.

It is an arithmetic number, because the mean of its divisors is an integer number (7354998).

Almost surely, 2^53885491 is an apocalyptic number.

53885491 is a deficient number, since it is larger than the sum of its proper divisors (4954493).

53885491 is a wasteful number, since it uses less digits than its factorization.

53885491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661.

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

The square root of 53885491 is about 7340.6737429203. The cubic root of 53885491 is about 377.7089549721.

The spelling of 53885491 in words is "fifty-three million, eight hundred eighty-five thousand, four hundred ninety-one".