20412552 has 64 divisors (see below), whose sum is σ = 52853760. Its totient is φ = 6566400.

The previous prime is 20412541. The next prime is 20412559. The reversal of 20412552 is 25521402.

It is a happy number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20412559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106777 + ... + 106967.

It is an arithmetic number, because the mean of its divisors is an integer number (825840).

Almost surely, 2^20412552 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 20412552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26426880).

20412552 is an abundant number, since it is smaller than the sum of its proper divisors (32441208).

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

20412552 is a wasteful number, since it uses less digits than its factorization.

20412552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20412552 is about 4518.0252323333. The cubic root of 20412552 is about 273.2954709932.

Adding to 20412552 its reverse (25521402), we get a palindrome (45933954).

The spelling of 20412552 in words is "twenty million, four hundred twelve thousand, five hundred fifty-two".