20046425 has 24 divisors (see below), whose sum is σ = 29908800. Its totient is φ = 13020480.

The previous prime is 20046421. The next prime is 20046427. The reversal of 20046425 is 52464002.

It is not a de Polignac number, because 20046425 - 2² = 20046421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20046425.

It is not an unprimeable number, because it can be changed into a prime (20046421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311 + ... + 6339.

It is an arithmetic number, because the mean of its divisors is an integer number (1246200).

Almost surely, 2^20046425 is an apocalyptic number.

20046425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20046425 is a deficient number, since it is larger than the sum of its proper divisors (9862375).

20046425 is a wasteful number, since it uses less digits than its factorization.

20046425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065 (or 6060 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 20046425 is about 4477.3234191870. The cubic root of 20046425 is about 271.6516274226.

The spelling of 20046425 in words is "twenty million, forty-six thousand, four hundred twenty-five".