220526 has 8 divisors (see below), whose sum is σ = 335664. Its totient is φ = 108640.

The previous prime is 220513. The next prime is 220529. The reversal of 220526 is 625022.

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

It is a Curzon number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220529) 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, 635 + ... + 918.

It is an arithmetic number, because the mean of its divisors is an integer number (41958).

2²²⁰⁵²⁶ is an apocalyptic number.

220526 is a deficient number, since it is larger than the sum of its proper divisors (115138).

220526 is a wasteful number, since it uses less digits than its factorization.

220526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 220526 is about 469.6019591101. The cubic root of 220526 is about 60.4161806276.

Adding to 220526 its reverse (625022), we get a palindrome (845548).

Subtracting 220526 from its reverse (625022), we obtain a square (404496 = 636²).

The spelling of 220526 in words is "two hundred twenty thousand, five hundred twenty-six".