20432625 has 48 divisors (see below), whose sum is σ = 35887488. Its totient is φ = 10322400.

The previous prime is 20432609. The next prime is 20432663. The reversal of 20432625 is 52623402.

It is not a de Polignac number, because 20432625 - 2⁴ = 20432609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20432595 and 20432604.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 198324 + ... + 198426.

It is an arithmetic number, because the mean of its divisors is an integer number (747656).

Almost surely, 2^20432625 is an apocalyptic number.

20432625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20432625 is a deficient number, since it is larger than the sum of its proper divisors (15454863).

20432625 is a wasteful number, since it uses less digits than its factorization.

20432625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 20432625 is about 4520.2461216177. The cubic root of 20432625 is about 273.3850247601.

The spelling of 20432625 in words is "twenty million, four hundred thirty-two thousand, six hundred twenty-five".