2485206981 has 16 divisors (see below), whose sum is σ = 3682633920. Its totient is φ = 1656424080.

The previous prime is 2485206979. The next prime is 2485207001. The reversal of 2485206981 is 1896025842.

2485206981 is a `hidden beast` number, since 2 + 48 + 520 + 6 + 9 + 81 = 666.

It is not a de Polignac number, because 2485206981 - 2¹ = 2485206979 is a prime.

It is a super-2 number, since 2×2485206981² = 12352507476822268722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2485206181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158031 + ... + 173043.

It is an arithmetic number, because the mean of its divisors is an integer number (230164620).

Almost surely, 2^2485206981 is an apocalyptic number.

It is an amenable number.

2485206981 is a deficient number, since it is larger than the sum of its proper divisors (1197426939).

2485206981 is a wasteful number, since it uses less digits than its factorization.

2485206981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21153 (or 21147 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 2485206981 is about 49851.8503267431. The cubic root of 2485206981 is about 1354.5265487328.

The spelling of 2485206981 in words is "two billion, four hundred eighty-five million, two hundred six thousand, nine hundred eighty-one".