2624125681 has 2 divisors, whose sum is σ = 2624125682. Its totient is φ = 2624125680.

The previous prime is 2624125631. The next prime is 2624125687. The reversal of 2624125681 is 1865214262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2115172081 + 508953600 = 45991^2 + 22560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2624125681 is a prime.

It is a super-2 number, since 2×2624125681² = 13772071179367427522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2624125681.

It is not a weakly prime, because it can be changed into another prime (2624125687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312062840 + 1312062841.

It is an arithmetic number, because the mean of its divisors is an integer number (1312062841).

Almost surely, 2^2624125681 is an apocalyptic number.

It is an amenable number.

2624125681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2624125681 is an equidigital number, since it uses as much as digits as its factorization.

2624125681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 2624125681 is about 51226.2206394343. The cubic root of 2624125681 is about 1379.3089169088.

The spelling of 2624125681 in words is "two billion, six hundred twenty-four million, one hundred twenty-five thousand, six hundred eighty-one".