20252586 has 8 divisors (see below), whose sum is σ = 40505184. Its totient is φ = 6750860.

The previous prime is 20252543. The next prime is 20252611. The reversal of 20252586 is 68525202.

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

20252586 is an admirable number.

It is a Curzon 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, 1687710 + ... + 1687721.

It is an arithmetic number, because the mean of its divisors is an integer number (5063148).

Almost surely, 2^20252586 is an apocalyptic number.

20252586 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20252586 is a wasteful number, since it uses less digits than its factorization.

20252586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375436.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 20252586 is about 4500.2873241605. The cubic root of 20252586 is about 272.5796910824.

Adding to 20252586 its reverse (68525202), we get a palindrome (88777788).

The spelling of 20252586 in words is "twenty million, two hundred fifty-two thousand, five hundred eighty-six".