20526260 has 12 divisors (see below), whose sum is σ = 43105188. Its totient is φ = 8210496.

The previous prime is 20526257. The next prime is 20526271. The reversal of 20526260 is 6262502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16224784 + 4301476 = 4028^2 + 2074^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513137 + ... + 513176.

It is an arithmetic number, because the mean of its divisors is an integer number (3592099).

Almost surely, 2^20526260 is an apocalyptic number.

20526260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20526260 is an abundant number, since it is smaller than the sum of its proper divisors (22578928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20526260 is a wasteful number, since it uses less digits than its factorization.

20526260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026322 (or 1026320 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20526260 is about 4530.5915728523. The cubic root of 20526260 is about 273.8019952249.

Adding to 20526260 its reverse (6262502), we get a palindrome (26788762).

The spelling of 20526260 in words is "twenty million, five hundred twenty-six thousand, two hundred sixty".