2541520231 has 2 divisors, whose sum is σ = 2541520232. Its totient is φ = 2541520230.

The previous prime is 2541520229. The next prime is 2541520277. The reversal of 2541520231 is 1320251452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2541520231 - 2¹ = 2541520229 is a prime.

It is a super-2 number, since 2×2541520231² = 12918650169164586722, which contains 22 as substring.

Together with 2541520229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2541520196 and 2541520205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2541524231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270760115 + 1270760116.

It is an arithmetic number, because the mean of its divisors is an integer number (1270760116).

Almost surely, 2^2541520231 is an apocalyptic number.

2541520231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541520231 is an equidigital number, since it uses as much as digits as its factorization.

2541520231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2541520231 is about 50413.4925491182. The cubic root of 2541520231 is about 1364.6811424087.

Adding to 2541520231 its reverse (1320251452), we get a palindrome (3861771683).

The spelling of 2541520231 in words is "two billion, five hundred forty-one million, five hundred twenty thousand, two hundred thirty-one".