2540915407 has 2 divisors, whose sum is σ = 2540915408. Its totient is φ = 2540915406.

The previous prime is 2540915369. The next prime is 2540915423. The reversal of 2540915407 is 7045190452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2540915407 - 2¹¹ = 2540913359 is a prime.

It is a super-2 number, since 2×2540915407² = 12912502211059951298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540915477) 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 as a sum of consecutive naturals, namely, 1270457703 + 1270457704.

It is an arithmetic number, because the mean of its divisors is an integer number (1270457704).

Almost surely, 2^2540915407 is an apocalyptic number.

2540915407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540915407 is an equidigital number, since it uses as much as digits as its factorization.

2540915407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2540915407 is about 50407.4935599857. The cubic root of 2540915407 is about 1364.5728794642.

The spelling of 2540915407 in words is "two billion, five hundred forty million, nine hundred fifteen thousand, four hundred seven".