20554248 has 128 divisors (see below), whose sum is σ = 62052480. Its totient is φ = 5591040.

The previous prime is 20554229. The next prime is 20554253. The reversal of 20554248 is 84245502.

It is a super-2 number, since 2×20554248² = 844954221691008, which contains 22 as substring.

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, 181840 + ... + 181952.

It is an arithmetic number, because the mean of its divisors is an integer number (484785).

Almost surely, 2^20554248 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 20554248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31026240).

20554248 is an abundant number, since it is smaller than the sum of its proper divisors (41498232).

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

20554248 is a wasteful number, since it uses less digits than its factorization.

20554248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 20554248 is about 4533.6793005240. The cubic root of 20554248 is about 273.9263836898.

It can be divided in two parts, 20554 and 248, that added together give a palindrome (20802).

The spelling of 20554248 in words is "twenty million, five hundred fifty-four thousand, two hundred forty-eight".