20259098 has 4 divisors (see below), whose sum is σ = 30388650. Its totient is φ = 10129548.

The previous prime is 20259097. The next prime is 20259103. The reversal of 20259098 is 89095202.

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., 14417209 + 5841889 = 3797^2 + 2417^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20259097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5064773 + ... + 5064776.

Almost surely, 2^20259098 is an apocalyptic number.

20259098 is a deficient number, since it is larger than the sum of its proper divisors (10129552).

20259098 is a wasteful number, since it uses less digits than its factorization.

20259098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10129551.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 20259098 is about 4501.0107753704. The cubic root of 20259098 is about 272.6089029690.

The spelling of 20259098 in words is "twenty million, two hundred fifty-nine thousand, ninety-eight".