20525898 has 16 divisors (see below), whose sum is σ = 42161760. Its totient is φ = 6656976.

The previous prime is 20525863. The next prime is 20525903. The reversal of 20525898 is 89852502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46008 + ... + 46451.

It is an arithmetic number, because the mean of its divisors is an integer number (2635110).

Almost surely, 2^20525898 is an apocalyptic number.

20525898 is an abundant number, since it is smaller than the sum of its proper divisors (21635862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20525898 is a wasteful number, since it uses less digits than its factorization.

20525898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92501.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 20525898 is about 4530.5516220434. The cubic root of 20525898 is about 273.8003856298.

The spelling of 20525898 in words is "twenty million, five hundred twenty-five thousand, eight hundred ninety-eight".