20551298 has 8 divisors (see below), whose sum is σ = 31198608. Its totient is φ = 10151764.

The previous prime is 20551277. The next prime is 20551303. The reversal of 20551298 is 89215502.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61736 + ... + 62067.

It is an arithmetic number, because the mean of its divisors is an integer number (3899826).

Almost surely, 2^20551298 is an apocalyptic number.

20551298 is a deficient number, since it is larger than the sum of its proper divisors (10647310).

20551298 is a wasteful number, since it uses less digits than its factorization.

20551298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123888.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 20551298 is about 4533.3539460316. The cubic root of 20551298 is about 273.9132781833.

The spelling of 20551298 in words is "twenty million, five hundred fifty-one thousand, two hundred ninety-eight".