20552998 has 8 divisors (see below), whose sum is σ = 30882600. Its totient is φ = 10258800.

The previous prime is 20552993. The next prime is 20552999. The reversal of 20552998 is 89925502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20552998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7348 + ... + 9751.

It is an arithmetic number, because the mean of its divisors is an integer number (3860325).

Almost surely, 2^20552998 is an apocalyptic number.

20552998 is a deficient number, since it is larger than the sum of its proper divisors (10329602).

20552998 is a wasteful number, since it uses less digits than its factorization.

20552998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17702.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 20552998 is about 4533.5414413017. The cubic root of 20552998 is about 273.9208306622.

The spelling of 20552998 in words is "twenty million, five hundred fifty-two thousand, nine hundred ninety-eight".