20025598 has 4 divisors (see below), whose sum is σ = 30038400. Its totient is φ = 10012798.

The previous prime is 20025583. The next prime is 20025611. The reversal of 20025598 is 89552002.

It is a happy number.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5006398 + ... + 5006401.

It is an arithmetic number, because the mean of its divisors is an integer number (7509600).

Almost surely, 2^20025598 is an apocalyptic number.

20025598 is a deficient number, since it is larger than the sum of its proper divisors (10012802).

20025598 is a wasteful number, since it uses less digits than its factorization.

20025598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012801.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 20025598 is about 4474.9969832392. The cubic root of 20025598 is about 271.5575183914.

The spelling of 20025598 in words is "twenty million, twenty-five thousand, five hundred ninety-eight".