52532981 has 8 divisors (see below), whose sum is σ = 53837184. Its totient is φ = 51236640.

The previous prime is 52532959. The next prime is 52532983. The reversal of 52532981 is 18923525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52532981 is a prime.

It is a super-2 number, since 2×52532981² = 5519428185492722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52532983) 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, 12926 + ... + 16496.

It is an arithmetic number, because the mean of its divisors is an integer number (6729648).

Almost surely, 2^52532981 is an apocalyptic number.

It is an amenable number.

52532981 is a deficient number, since it is larger than the sum of its proper divisors (1304203).

52532981 is a wasteful number, since it uses less digits than its factorization.

52532981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3931.

The product of its digits is 21600, while the sum is 35.

The square root of 52532981 is about 7247.9639209919. The cubic root of 52532981 is about 374.5220126300.

The spelling of 52532981 in words is "fifty-two million, five hundred thirty-two thousand, nine hundred eighty-one".