20054965 has 24 divisors (see below), whose sum is σ = 29220480. Its totient is φ = 13150368.

The previous prime is 20054963. The next prime is 20054977. The reversal of 20054965 is 56945002.

It is not a de Polignac number, because 20054965 - 2¹ = 20054963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054963) 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, 3856 + ... + 7414.

It is an arithmetic number, because the mean of its divisors is an integer number (1217520).

Almost surely, 2^20054965 is an apocalyptic number.

It is an amenable number.

20054965 is a deficient number, since it is larger than the sum of its proper divisors (9165515).

20054965 is a wasteful number, since it uses less digits than its factorization.

20054965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3601 (or 3594 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 20054965 is about 4478.2770124234. The cubic root of 20054965 is about 271.6901974842.

Adding to 20054965 its reverse (56945002), we get a palindrome (76999967).

The spelling of 20054965 in words is "twenty million, fifty-four thousand, nine hundred sixty-five".