20261035 has 4 divisors (see below), whose sum is σ = 24313248. Its totient is φ = 16208824.

The previous prime is 20261023. The next prime is 20261039. The reversal of 20261035 is 53016202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53016202 = 2 ⋅26508101.

It is a cyclic number.

It is not a de Polignac number, because 20261035 - 2⁹ = 20260523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20261039) 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, 2026099 + ... + 2026108.

It is an arithmetic number, because the mean of its divisors is an integer number (6078312).

Almost surely, 2^20261035 is an apocalyptic number.

20261035 is a deficient number, since it is larger than the sum of its proper divisors (4052213).

20261035 is an equidigital number, since it uses as much as digits as its factorization.

20261035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052212.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20261035 is about 4501.2259441179. The cubic root of 20261035 is about 272.6175908618.

Adding to 20261035 its reverse (53016202), we get a palindrome (73277237).

The spelling of 20261035 in words is "twenty million, two hundred sixty-one thousand, thirty-five".