20265101 has 4 divisors (see below), whose sum is σ = 20288352. Its totient is φ = 20241852.

The previous prime is 20265067. The next prime is 20265121. The reversal of 20265101 is 10156202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20265101 - 2¹⁰ = 20264077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20265101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20265121) 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, 10265 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (5072088).

Almost surely, 2^20265101 is an apocalyptic number.

It is an amenable number.

20265101 is a deficient number, since it is larger than the sum of its proper divisors (23251).

20265101 is an equidigital number, since it uses as much as digits as its factorization.

20265101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23250.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20265101 is about 4501.6775761931. The cubic root of 20265101 is about 272.6358260110.

The spelling of 20265101 in words is "twenty million, two hundred sixty-five thousand, one hundred one".