20475352 has 16 divisors (see below), whose sum is σ = 38458440. Its totient is φ = 10219776.

The previous prime is 20475349. The next prime is 20475373. The reversal of 20475352 is 25357402.

It is a self number, because there is not a number n which added to its sum of digits gives 20475352.

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 3 ways as a sum of consecutive naturals, for example, 3483 + ... + 7285.

Almost surely, 2^20475352 is an apocalyptic number.

It is an amenable number.

20475352 is a deficient number, since it is larger than the sum of its proper divisors (17983088).

20475352 is a wasteful number, since it uses less digits than its factorization.

20475352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4482 (or 4478 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 20475352 is about 4524.9698341536. The cubic root of 20475352 is about 273.5754520684.

The spelling of 20475352 in words is "twenty million, four hundred seventy-five thousand, three hundred fifty-two".