20598255 has 12 divisors (see below), whose sum is σ = 35703720. Its totient is φ = 10985712.

The previous prime is 20598239. The next prime is 20598269. The reversal of 20598255 is 55289502.

It is not a de Polignac number, because 20598255 - 2⁴ = 20598239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228825 + ... + 228914.

It is an arithmetic number, because the mean of its divisors is an integer number (2975310).

Almost surely, 2^20598255 is an apocalyptic number.

20598255 is a deficient number, since it is larger than the sum of its proper divisors (15105465).

20598255 is a wasteful number, since it uses less digits than its factorization.

20598255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457750 (or 457747 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 20598255 is about 4538.5300483747. The cubic root of 20598255 is about 274.1217380434.

The spelling of 20598255 in words is "twenty million, five hundred ninety-eight thousand, two hundred fifty-five".