20480085 has 24 divisors (see below), whose sum is σ = 35692800. Its totient is φ = 10863072.

The previous prime is 20480071. The next prime is 20480099. The reversal of 20480085 is 58008402.

It is an interprime number because it is at equal distance from previous prime (20480071) and next prime (20480099).

It is not a de Polignac number, because 20480085 - 2⁴ = 20480069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7812 + ... + 10098.

It is an arithmetic number, because the mean of its divisors is an integer number (1487200).

Almost surely, 2^20480085 is an apocalyptic number.

It is an amenable number.

20480085 is a deficient number, since it is larger than the sum of its proper divisors (15212715).

20480085 is a wasteful number, since it uses less digits than its factorization.

20480085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497 (or 2494 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 20480085 is about 4525.4927908461. The cubic root of 20480085 is about 273.5965299780.

Adding to 20480085 its reverse (58008402), we get a palindrome (78488487).

The spelling of 20480085 in words is "twenty million, four hundred eighty thousand, eighty-five".