53290 has 12 divisors (see below), whose sum is σ = 97254.
Its totient is φ = 21024.
The previous prime is 53281. The next prime is 53299. The reversal of 53290 is 9235.
It can be divided in two parts, 53 and 290, that added together give a palindrome (343).
It is an interprime number because it is at equal distance from previous prime (53281) and next prime (53299).
It can be written as a sum of positive squares in 3 ways, for example, as 45369 + 7921 = 213^2 + 89^2
It is an Ulam number.
It is not an unprimeable number, because it can be changed into a prime (53299) 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, 694 + ... + 766.
253290 is an apocalyptic number.
53290 is a deficient number, since it is larger than the sum of its proper divisors (43964).
53290 is an equidigital number, since it uses as much as digits as its factorization.
53290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 153 (or 80 counting only the distinct ones).
The product of its (nonzero) digits is 270, while the sum is 19.
The square root of 53290 is about 230.8462691923.
The cubic root of 53290 is about 37.6312438360.
The spelling of 53290 in words is "fifty-three thousand, two hundred ninety".