20025315 has 48 divisors (see below), whose sum is σ = 36241920. Its totient is φ = 10221120.

The previous prime is 20025311. The next prime is 20025329. The reversal of 20025315 is 51352002.

It is a happy number.

It is not a de Polignac number, because 20025315 - 2² = 20025311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20025311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152800 + ... + 152930.

It is an arithmetic number, because the mean of its divisors is an integer number (755040).

Almost surely, 2^20025315 is an apocalyptic number.

20025315 is a deficient number, since it is larger than the sum of its proper divisors (16216605).

20025315 is a wasteful number, since it uses less digits than its factorization.

20025315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 20025315 is about 4474.9653629944. The cubic root of 20025315 is about 271.5562391764.

Adding to 20025315 its reverse (51352002), we get a palindrome (71377317).

The spelling of 20025315 in words is "twenty million, twenty-five thousand, three hundred fifteen".