52991017 has 4 divisors (see below), whose sum is σ = 53018496. Its totient is φ = 52963540.

The previous prime is 52991009. The next prime is 52991041. The reversal of 52991017 is 71019925.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52991017 - 2³ = 52991009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52991047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10609 + ... + 14782.

It is an arithmetic number, because the mean of its divisors is an integer number (13254624).

Almost surely, 2^52991017 is an apocalyptic number.

It is an amenable number.

52991017 is a deficient number, since it is larger than the sum of its proper divisors (27479).

52991017 is a wasteful number, since it uses less digits than its factorization.

52991017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27478.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 52991017 is about 7279.4929081633. The cubic root of 52991017 is about 375.6073523897.

The spelling of 52991017 in words is "fifty-two million, nine hundred ninety-one thousand, seventeen".