20854082425 has 48 divisors (see below), whose sum is σ = 28500675840. Its totient is φ = 15011136000.

The previous prime is 20854082411. The next prime is 20854082467. The reversal of 20854082425 is 52428045802.

It is not a de Polignac number, because 20854082425 - 2³¹ = 18706598777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11895349 + ... + 11897101.

It is an arithmetic number, because the mean of its divisors is an integer number (593764080).

Almost surely, 2^20854082425 is an apocalyptic number.

20854082425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20854082425 is a deficient number, since it is larger than the sum of its proper divisors (7646593415).

20854082425 is a wasteful number, since it uses less digits than its factorization.

20854082425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2189 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 40.

The spelling of 20854082425 in words is "twenty billion, eight hundred fifty-four million, eighty-two thousand, four hundred twenty-five".