20056435 has 24 divisors (see below), whose sum is σ = 28416096. Its totient is φ = 13547520.

The previous prime is 20056433. The next prime is 20056453. The reversal of 20056435 is 53465002.

It is not a de Polignac number, because 20056435 - 2¹ = 20056433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20056433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16819 + ... + 17971.

It is an arithmetic number, because the mean of its divisors is an integer number (1184004).

Almost surely, 2^20056435 is an apocalyptic number.

20056435 is a deficient number, since it is larger than the sum of its proper divisors (8359661).

20056435 is a wasteful number, since it uses less digits than its factorization.

20056435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 20056435 is about 4478.4411350379. The cubic root of 20056435 is about 271.6968354885.

The spelling of 20056435 in words is "twenty million, fifty-six thousand, four hundred thirty-five".