20525050 has 72 divisors (see below), whose sum is σ = 47380896. Its totient is φ = 6477120.

The previous prime is 20525017. The next prime is 20525053. The reversal of 20525050 is 5052502.

It is not an unprimeable number, because it can be changed into a prime (20525053) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 58977 + ... + 59323.

It is an arithmetic number, because the mean of its divisors is an integer number (658068).

Almost surely, 2^20525050 is an apocalyptic number.

20525050 is an abundant number, since it is smaller than the sum of its proper divisors (26855846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20525050 is a wasteful number, since it uses less digits than its factorization.

20525050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 20525050 is about 4530.4580342389. The cubic root of 20525050 is about 273.7966150124.

Adding to 20525050 its reverse (5052502), we get a palindrome (25577552).

The spelling of 20525050 in words is "twenty million, five hundred twenty-five thousand, fifty".