20525103 has 32 divisors (see below), whose sum is σ = 32598720. Its totient is φ = 12718080.

The previous prime is 20525101. The next prime is 20525129. The reversal of 20525103 is 30152502.

It is a happy number.

It is not a de Polignac number, because 20525103 - 2¹ = 20525101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44293 + ... + 44753.

It is an arithmetic number, because the mean of its divisors is an integer number (1018710).

Almost surely, 2^20525103 is an apocalyptic number.

20525103 is a deficient number, since it is larger than the sum of its proper divisors (12073617).

20525103 is a wasteful number, since it uses less digits than its factorization.

20525103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 578 counting only the distinct ones).

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

The square root of 20525103 is about 4530.4638835333. The cubic root of 20525103 is about 273.7968506790.

Adding to 20525103 its reverse (30152502), we get a palindrome (50677605).

The spelling of 20525103 in words is "twenty million, five hundred twenty-five thousand, one hundred three".