20425132 has 24 divisors (see below), whose sum is σ = 43993376. Its totient is φ = 8080128.

The previous prime is 20425121. The next prime is 20425159. The reversal of 20425132 is 23152402.

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, 27693 + ... + 28420.

Almost surely, 2^20425132 is an apocalyptic number.

It is an amenable number.

20425132 is an abundant number, since it is smaller than the sum of its proper divisors (23568244).

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

20425132 is a wasteful number, since it uses less digits than its factorization.

20425132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56137 (or 56135 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20425132 is about 4519.4172190671. The cubic root of 20425132 is about 273.3516023218.

Adding to 20425132 its reverse (23152402), we get a palindrome (43577534).

The spelling of 20425132 in words is "twenty million, four hundred twenty-five thousand, one hundred thirty-two".