2540078533 has 2 divisors, whose sum is σ = 2540078534. Its totient is φ = 2540078532.

The previous prime is 2540078509. The next prime is 2540078537. The reversal of 2540078533 is 3358700452.

2540078533 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., 2375392644 + 164685889 = 48738^2 + 12833^2 .

It is a cyclic number.

It is not a de Polignac number, because 2540078533 - 2¹³ = 2540070341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2540078492 and 2540078501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540078537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270039266 + 1270039267.

It is an arithmetic number, because the mean of its divisors is an integer number (1270039267).

Almost surely, 2^2540078533 is an apocalyptic number.

It is an amenable number.

2540078533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540078533 is an equidigital number, since it uses as much as digits as its factorization.

2540078533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 2540078533 is about 50399.1917891547. The cubic root of 2540078533 is about 1364.4230514459.

Adding to 2540078533 its reverse (3358700452), we get a palindrome (5898778985).

The spelling of 2540078533 in words is "two billion, five hundred forty million, seventy-eight thousand, five hundred thirty-three".