20258411 has 4 divisors (see below), whose sum is σ = 20268024. Its totient is φ = 20248800.

The previous prime is 20258401. The next prime is 20258437. The reversal of 20258411 is 11485202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20258411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20258401) 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, 125 + ... + 6366.

It is an arithmetic number, because the mean of its divisors is an integer number (5067006).

Almost surely, 2^20258411 is an apocalyptic number.

20258411 is a deficient number, since it is larger than the sum of its proper divisors (9613).

20258411 is an equidigital number, since it uses as much as digits as its factorization.

20258411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9612.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 20258411 is about 4500.9344585319. The cubic root of 20258411 is about 272.6058214821.

The spelling of 20258411 in words is "twenty million, two hundred fifty-eight thousand, four hundred eleven".