53812891 has 8 divisors (see below), whose sum is σ = 58759344. Its totient is φ = 48875520.

The previous prime is 53812879. The next prime is 53812907. The reversal of 53812891 is 19821835.

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

It is a cyclic number.

It is not a de Polignac number, because 53812891 - 2¹¹ = 53810843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53812891.

It is not an unprimeable number, because it can be changed into a prime (53812831) 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, 18171 + ... + 20923.

It is an arithmetic number, because the mean of its divisors is an integer number (7344918).

Almost surely, 2^53812891 is an apocalyptic number.

53812891 is a deficient number, since it is larger than the sum of its proper divisors (4946453).

53812891 is a wasteful number, since it uses less digits than its factorization.

53812891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541.

The product of its digits is 17280, while the sum is 37.

The square root of 53812891 is about 7335.7270260009. The cubic root of 53812891 is about 377.5392494605.

The spelling of 53812891 in words is "fifty-three million, eight hundred twelve thousand, eight hundred ninety-one".