20425350 has 48 divisors (see below), whose sum is σ = 55264320. Its totient is φ = 4951200.

The previous prime is 20425343. The next prime is 20425397. The reversal of 20425350 is 5352402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4540 + ... + 7839.

It is an arithmetic number, because the mean of its divisors is an integer number (1151340).

Almost surely, 2^20425350 is an apocalyptic number.

20425350 is an abundant number, since it is smaller than the sum of its proper divisors (34838970).

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

20425350 is a wasteful number, since it uses less digits than its factorization.

20425350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12405 (or 12400 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 20425350 is about 4519.4413371566. The cubic root of 20425350 is about 273.3525748237.

Adding to 20425350 its reverse (5352402), we get a palindrome (25777752).

The spelling of 20425350 in words is "twenty million, four hundred twenty-five thousand, three hundred fifty".