2541515393 has 2 divisors, whose sum is σ = 2541515394. Its totient is φ = 2541515392.

The previous prime is 2541515299. The next prime is 2541515423. The reversal of 2541515393 is 3935151452.

2541515393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1344908929 + 1196606464 = 36673^2 + 34592^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541515393 - 2¹⁰ = 2541514369 is a prime.

It is not a weakly prime, because it can be changed into another prime (2541518393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270757696 + 1270757697.

It is an arithmetic number, because the mean of its divisors is an integer number (1270757697).

Almost surely, 2^2541515393 is an apocalyptic number.

It is an amenable number.

2541515393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541515393 is an equidigital number, since it uses as much as digits as its factorization.

2541515393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 38.

The square root of 2541515393 is about 50413.4445659092. Note that the first 3 decimals coincide. The cubic root of 2541515393 is about 1364.6802764792.

The spelling of 2541515393 in words is "two billion, five hundred forty-one million, five hundred fifteen thousand, three hundred ninety-three".