53091881 has 8 divisors (see below), whose sum is σ = 53529600. Its totient is φ = 52656480.

The previous prime is 53091869. The next prime is 53091911. The reversal of 53091881 is 18819035.

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 53091881 - 2⁶ = 53091817 is a prime.

It is a super-2 number, since 2×53091881² = 5637495656236322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53091821) 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, 110600 + ... + 111078.

It is an arithmetic number, because the mean of its divisors is an integer number (6691200).

Almost surely, 2^53091881 is an apocalyptic number.

It is an amenable number.

53091881 is a deficient number, since it is larger than the sum of its proper divisors (437719).

53091881 is a wasteful number, since it uses less digits than its factorization.

53091881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 53091881 is about 7286.4175696977. The cubic root of 53091881 is about 375.8455138139.

The spelling of 53091881 in words is "fifty-three million, ninety-one thousand, eight hundred eighty-one".