2519254081 has 2 divisors, whose sum is σ = 2519254082. Its totient is φ = 2519254080.

The previous prime is 2519254079. The next prime is 2519254093. The reversal of 2519254081 is 1804529152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2170162225 + 349091856 = 46585^2 + 18684^2 .

It is a cyclic number.

It is not a de Polignac number, because 2519254081 - 2¹ = 2519254079 is a prime.

It is a super-2 number, since 2×2519254081² = 12693282249270309122, which contains 22 as substring.

Together with 2519254079, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2519254081.

It is not a weakly prime, because it can be changed into another prime (2519254481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259627040 + 1259627041.

It is an arithmetic number, because the mean of its divisors is an integer number (1259627041).

Almost surely, 2^2519254081 is an apocalyptic number.

It is an amenable number.

2519254081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2519254081 is an equidigital number, since it uses as much as digits as its factorization.

2519254081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 2519254081 is about 50192.1715111032. The cubic root of 2519254081 is about 1360.6841427031.

The spelling of 2519254081 in words is "two billion, five hundred nineteen million, two hundred fifty-four thousand, eighty-one".