52990 has 16 divisors (see below), whose sum is σ = 109152. Its totient is φ = 18144.

The previous prime is 52981. The next prime is 52999. The reversal of 52990 is 9925.

It is an interprime number because it is at equal distance from previous prime (52981) and next prime (52999).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52999) by changing a digit.

52990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309 + ... + 448.

It is an arithmetic number, because the mean of its divisors is an integer number (6822).

2⁵²⁹⁹⁰ is an apocalyptic number.

52990 is an abundant number, since it is smaller than the sum of its proper divisors (56162).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54576).

52990 is a wasteful number, since it uses less digits than its factorization.

52990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 52990 is about 230.1955690277. The cubic root of 52990 is about 37.5604949497.

The spelling of 52990 in words is "fifty-two thousand, nine hundred ninety".