20295001 has 4 divisors (see below), whose sum is σ = 20312500. Its totient is φ = 20277504.

The previous prime is 20294977. The next prime is 20295013. The reversal of 20295001 is 10059202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10059202 = 2 ⋅5029601.

It can be written as a sum of positive squares in 2 ways, for example, as 10208025 + 10086976 = 3195^2 + 3176^2 .

It is a cyclic number.

It is not a de Polignac number, because 20295001 - 2⁵ = 20294969 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 20295001.

It is not an unprimeable number, because it can be changed into a prime (20295061) 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, 6876 + ... + 9373.

It is an arithmetic number, because the mean of its divisors is an integer number (5078125).

Almost surely, 2^20295001 is an apocalyptic number.

It is an amenable number.

20295001 is a deficient number, since it is larger than the sum of its proper divisors (17499).

20295001 is a wasteful number, since it uses less digits than its factorization.

20295001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17498.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 20295001 is about 4504.9973362922. The cubic root of 20295001 is about 272.7698463201.

The spelling of 20295001 in words is "twenty million, two hundred ninety-five thousand, one".