20425130 has 16 divisors (see below), whose sum is σ = 40107744. Its totient is φ = 7427280.

The previous prime is 20425121. The next prime is 20425159. The reversal of 20425130 is 3152402.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20425099 and 20425108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92732 + ... + 92951.

It is an arithmetic number, because the mean of its divisors is an integer number (2506734).

Almost surely, 2^20425130 is an apocalyptic number.

20425130 is a deficient number, since it is larger than the sum of its proper divisors (19682614).

20425130 is a wasteful number, since it uses less digits than its factorization.

20425130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185701.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20425130 is about 4519.4169977996. The cubic root of 20425130 is about 273.3515933997.

Adding to 20425130 its reverse (3152402), we get a palindrome (23577532).

The spelling of 20425130 in words is "twenty million, four hundred twenty-five thousand, one hundred thirty".