52886991 has 12 divisors (see below), whose sum is σ = 71140632. Its totient is φ = 34948368.

The previous prime is 52886989. The next prime is 52886993. The reversal of 52886991 is 19968825.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52886989) and next prime (52886993).

It is not a de Polignac number, because 52886991 - 2¹ = 52886989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52886991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52886993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47841 + ... + 48933.

It is an arithmetic number, because the mean of its divisors is an integer number (5928386).

Almost surely, 2^52886991 is an apocalyptic number.

52886991 is a deficient number, since it is larger than the sum of its proper divisors (18253641).

52886991 is a wasteful number, since it uses less digits than its factorization.

52886991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350 (or 1223 counting only the distinct ones).

The product of its digits is 311040, while the sum is 48.

The square root of 52886991 is about 7272.3442575280. The cubic root of 52886991 is about 375.3614080239.

The spelling of 52886991 in words is "fifty-two million, eight hundred eighty-six thousand, nine hundred ninety-one".