2524278681 has 16 divisors (see below), whose sum is σ = 3902267520. Its totient is φ = 1609684560.

The previous prime is 2524278613. The next prime is 2524278683. The reversal of 2524278681 is 1868724252.

It is not a de Polignac number, because 2524278681 - 2²⁹ = 1987407769 is a prime.

It is a super-2 number, since 2×2524278681² = 12743965718702199522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2524278683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2031810 + ... + 2033051.

It is an arithmetic number, because the mean of its divisors is an integer number (243891720).

Almost surely, 2^2524278681 is an apocalyptic number.

It is an amenable number.

2524278681 is a deficient number, since it is larger than the sum of its proper divisors (1377988839).

2524278681 is a wasteful number, since it uses less digits than its factorization.

2524278681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064893 (or 4064887 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 2524278681 is about 50242.2002006282. The cubic root of 2524278681 is about 1361.5881607187.

The spelling of 2524278681 in words is "two billion, five hundred twenty-four million, two hundred seventy-eight thousand, six hundred eighty-one".