20465095 has 16 divisors (see below), whose sum is σ = 28641600. Its totient is φ = 14032032.

The previous prime is 20465057. The next prime is 20465099. The reversal of 20465095 is 59056402.

It is not a de Polignac number, because 20465095 - 2¹⁹ = 19940807 is a prime.

It is a super-2 number, since 2×20465095² = 837640226718050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20465099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4252 + ... + 7681.

It is an arithmetic number, because the mean of its divisors is an integer number (1790100).

Almost surely, 2^20465095 is an apocalyptic number.

20465095 is a deficient number, since it is larger than the sum of its proper divisors (8176505).

20465095 is an equidigital number, since it uses as much as digits as its factorization.

20465095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11959 (or 11945 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 20465095 is about 4523.8363144570. The cubic root of 20465095 is about 273.5297624656.

The spelling of 20465095 in words is "twenty million, four hundred sixty-five thousand, ninety-five".