2519136481 has 9 divisors (see below), whose sum is σ = 2570278291. Its totient is φ = 2468995672.

The previous prime is 2519136469. The next prime is 2519136491. The reversal of 2519136481 is 1846319152.

The square root of 2519136481 is 50191.

It is a perfect power (a square), and thus also a powerful number.

2519136481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1816038225 + 703098256 = 42615^2 + 26516^2 .

It is not a de Polignac number, because 2519136481 - 2²⁵ = 2485582049 is a prime.

It is a super-2 number, since 2×2519136481² = 12692097219810126722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2519136401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2659650 + ... + 2660596.

Almost surely, 2^2519136481 is an apocalyptic number.

2519136481 is the 50191-st square number.

2519136481 is the 25096-th centered octagonal number.

It is an amenable number.

2519136481 is a deficient number, since it is larger than the sum of its proper divisors (51141810).

2519136481 is an frugal number, since it uses more digits than its factorization.

2519136481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000 (or 1000 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The cubic root of 2519136481 is about 1360.6629699088.

The spelling of 2519136481 in words is "two billion, five hundred nineteen million, one hundred thirty-six thousand, four hundred eighty-one".