53027991 has 6 divisors (see below), whose sum is σ = 76596000. Its totient is φ = 35351988.

The previous prime is 53027977. The next prime is 53028043. The reversal of 53027991 is 19972035.

It is not a de Polignac number, because 53027991 - 2⁵ = 53027959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53027911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2945991 + ... + 2946008.

It is an arithmetic number, because the mean of its divisors is an integer number (12766000).

Almost surely, 2^53027991 is an apocalyptic number.

53027991 is a deficient number, since it is larger than the sum of its proper divisors (23568009).

53027991 is a wasteful number, since it uses less digits than its factorization.

53027991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892005 (or 5892002 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 53027991 is about 7282.0320652961. The cubic root of 53027991 is about 375.6946909506.

The spelling of 53027991 in words is "fifty-three million, twenty-seven thousand, nine hundred ninety-one".