20560254 has 64 divisors (see below), whose sum is σ = 49932288. Its totient is φ = 5558400.

The previous prime is 20560247. The next prime is 20560273. The reversal of 20560254 is 45206502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26212 + ... + 26984.

It is an arithmetic number, because the mean of its divisors is an integer number (780192).

Almost surely, 2^20560254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20560254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24966144).

20560254 is an abundant number, since it is smaller than the sum of its proper divisors (29372034).

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

20560254 is a wasteful number, since it uses less digits than its factorization.

20560254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20560254 is about 4534.3416280647. The cubic root of 20560254 is about 273.9530617378.

Adding to 20560254 its reverse (45206502), we get a palindrome (65766756).

The spelling of 20560254 in words is "twenty million, five hundred sixty thousand, two hundred fifty-four".