20052534 has 16 divisors (see below), whose sum is σ = 41038272. Its totient is φ = 6528648.

The previous prime is 20052521. The next prime is 20052541. The reversal of 20052534 is 43525002.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20052534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38604 + ... + 39119.

It is an arithmetic number, because the mean of its divisors is an integer number (2564892).

Almost surely, 2^20052534 is an apocalyptic number.

20052534 is an abundant number, since it is smaller than the sum of its proper divisors (20985738).

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

20052534 is a wasteful number, since it uses less digits than its factorization.

20052534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77771.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 20052534 is about 4478.0055828460. The cubic root of 20052534 is about 271.6792192292.

Adding to 20052534 its reverse (43525002), we get a palindrome (63577536).

The spelling of 20052534 in words is "twenty million, fifty-two thousand, five hundred thirty-four".