20355098 has 4 divisors (see below), whose sum is σ = 30532650. Its totient is φ = 10177548.

The previous prime is 20355067. The next prime is 20355107. The reversal of 20355098 is 89055302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14386849 + 5968249 = 3793^2 + 2443^2 .

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 as a sum of consecutive naturals, namely, 5088773 + ... + 5088776.

Almost surely, 2^20355098 is an apocalyptic number.

20355098 is a deficient number, since it is larger than the sum of its proper divisors (10177552).

20355098 is a wasteful number, since it uses less digits than its factorization.

20355098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10177551.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 20355098 is about 4511.6624430469. The cubic root of 20355098 is about 273.0388205293.

The spelling of 20355098 in words is "twenty million, three hundred fifty-five thousand, ninety-eight".