20054256 has 40 divisors (see below), whose sum is σ = 52295760. Its totient is φ = 6621696.

The previous prime is 20054249. The next prime is 20054267. The reversal of 20054256 is 65245002.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 3316 + ... + 7148.

It is an arithmetic number, because the mean of its divisors is an integer number (1307394).

Almost surely, 2^20054256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20054256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26147880).

20054256 is an abundant number, since it is smaller than the sum of its proper divisors (32241504).

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

20054256 is a wasteful number, since it uses less digits than its factorization.

20054256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953 (or 3947 counting only the distinct ones).

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

The square root of 20054256 is about 4478.1978518149. The cubic root of 20054256 is about 271.6869957730.

Adding to 20054256 its reverse (65245002), we get a palindrome (85299258).

The spelling of 20054256 in words is "twenty million, fifty-four thousand, two hundred fifty-six".