2541999457 has 2 divisors, whose sum is σ = 2541999458. Its totient is φ = 2541999456.

The previous prime is 2541999433. The next prime is 2541999463. The reversal of 2541999457 is 7549991452.

It is a happy number.

2541999457 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., 1847624256 + 694375201 = 42984^2 + 26351^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541999457 - 2⁷ = 2541999329 is a prime.

It is a super-2 number, since 2×2541999457² = 12923522478776589698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2541999398 and 2541999407.

It is not a weakly prime, because it can be changed into another prime (2541999407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270999728 + 1270999729.

It is an arithmetic number, because the mean of its divisors is an integer number (1270999729).

Almost surely, 2^2541999457 is an apocalyptic number.

It is an amenable number.

2541999457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541999457 is an equidigital number, since it uses as much as digits as its factorization.

2541999457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 55.

The square root of 2541999457 is about 50418.2452788671. The cubic root of 2541999457 is about 1364.7669112300.

The spelling of 2541999457 in words is "two billion, five hundred forty-one million, nine hundred ninety-nine thousand, four hundred fifty-seven".