20313025 has 12 divisors (see below), whose sum is σ = 26284032. Its totient is φ = 15543440.

The previous prime is 20313001. The next prime is 20313047. The reversal of 20313025 is 52031302.

It is a de Polignac number, because none of the positive numbers 2^k-20313025 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17089 + ... + 18238.

It is an arithmetic number, because the mean of its divisors is an integer number (2190336).

Almost surely, 2^20313025 is an apocalyptic number.

20313025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20313025 is a deficient number, since it is larger than the sum of its proper divisors (5971007).

20313025 is a wasteful number, since it uses less digits than its factorization.

20313025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35360 (or 35355 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20313025 is about 4506.9973374743. The cubic root of 20313025 is about 272.8505714374.

Adding to 20313025 its reverse (52031302), we get a palindrome (72344327).

The spelling of 20313025 in words is "twenty million, three hundred thirteen thousand, twenty-five".