20252604 has 24 divisors (see below), whose sum is σ = 49311360. Its totient is φ = 6457264.

The previous prime is 20252543. The next prime is 20252611. The reversal of 20252604 is 40625202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36414 + ... + 36965.

It is an arithmetic number, because the mean of its divisors is an integer number (2054640).

Almost surely, 2^20252604 is an apocalyptic number.

It is an amenable number.

20252604 is an abundant number, since it is smaller than the sum of its proper divisors (29058756).

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

20252604 is a wasteful number, since it uses less digits than its factorization.

20252604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73409 (or 73407 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20252604 is about 4500.2893240324. The cubic root of 20252604 is about 272.5797718365.

Adding to 20252604 its reverse (40625202), we get a palindrome (60877806).

The spelling of 20252604 in words is "twenty million, two hundred fifty-two thousand, six hundred four".