20552448 has 72 divisors (see below), whose sum is σ = 62530048. Its totient is φ = 5870592.

The previous prime is 20552447. The next prime is 20552449. The reversal of 20552448 is 84425502.

It is an interprime number because it is at equal distance from previous prime (20552447) and next prime (20552449).

It is not an unprimeable number, because it can be changed into a prime (20552447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3465 + ... + 7287.

Almost surely, 2^20552448 is an apocalyptic number.

20552448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20552448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31265024).

20552448 is an abundant number, since it is smaller than the sum of its proper divisors (41977600).

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

20552448 is an equidigital number, since it uses as much as digits as its factorization.

20552448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849 (or 3835 counting only the distinct ones).

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

The square root of 20552448 is about 4533.4807819158. The cubic root of 20552448 is about 273.9183872587.

The spelling of 20552448 in words is "twenty million, five hundred fifty-two thousand, four hundred forty-eight".