20554632 has 96 divisors (see below), whose sum is σ = 67392000. Its totient is φ = 5524992.

The previous prime is 20554631. The next prime is 20554657. The reversal of 20554632 is 23645502.

20554632 is a `hidden beast` number, since 20 + 5 + 5 + 4 + 632 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20554596 and 20554605.

It is not an unprimeable number, because it can be changed into a prime (20554631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7369 + ... + 9767.

It is an arithmetic number, because the mean of its divisors is an integer number (702000).

Almost surely, 2^20554632 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 20554632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33696000).

20554632 is an abundant number, since it is smaller than the sum of its proper divisors (46837368).

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

20554632 is a wasteful number, since it uses less digits than its factorization.

20554632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435 (or 2428 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 20554632 is about 4533.7216500354. The cubic root of 20554632 is about 273.9280895347.

The spelling of 20554632 in words is "twenty million, five hundred fifty-four thousand, six hundred thirty-two".