20325259 has 4 divisors (see below), whose sum is σ = 21026160. Its totient is φ = 19624360.

The previous prime is 20325257. The next prime is 20325301. The reversal of 20325259 is 95252302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95252302 = 2 ⋅47626151.

It is a cyclic number.

It is not a de Polignac number, because 20325259 - 2¹ = 20325257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20325257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350407 + ... + 350464.

It is an arithmetic number, because the mean of its divisors is an integer number (5256540).

Almost surely, 2^20325259 is an apocalyptic number.

20325259 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20325259 is a deficient number, since it is larger than the sum of its proper divisors (700901).

20325259 is an equidigital number, since it uses as much as digits as its factorization.

20325259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700900.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 20325259 is about 4508.3543560816. The cubic root of 20325259 is about 272.9053373487.

The spelling of 20325259 in words is "twenty million, three hundred twenty-five thousand, two hundred fifty-nine".