20252115 has 36 divisors (see below), whose sum is σ = 38025936. Its totient is φ = 9966528.

The previous prime is 20252107. The next prime is 20252131. The reversal of 20252115 is 51125202.

It is not a de Polignac number, because 20252115 - 2³ = 20252107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6274 + ... + 8936.

It is an arithmetic number, because the mean of its divisors is an integer number (1056276).

Almost surely, 2^20252115 is an apocalyptic number.

20252115 is a deficient number, since it is larger than the sum of its proper divisors (17773821).

20252115 is a wasteful number, since it uses less digits than its factorization.

20252115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 20252115 is about 4500.2349938642. The cubic root of 20252115 is about 272.5775780020.

Adding to 20252115 its reverse (51125202), we get a palindrome (71377317).

The spelling of 20252115 in words is "twenty million, two hundred fifty-two thousand, one hundred fifteen".