2545401539 has 2 divisors, whose sum is σ = 2545401540. Its totient is φ = 2545401538.

The previous prime is 2545401491. The next prime is 2545401553. The reversal of 2545401539 is 9351045452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2545401539 - 2¹² = 2545397443 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545401589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272700769 + 1272700770.

It is an arithmetic number, because the mean of its divisors is an integer number (1272700770).

Almost surely, 2^2545401539 is an apocalyptic number.

2545401539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545401539 is an equidigital number, since it uses as much as digits as its factorization.

2545401539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 2545401539 is about 50451.9725977092. The cubic root of 2545401539 is about 1365.3754845494.

The spelling of 2545401539 in words is "two billion, five hundred forty-five million, four hundred one thousand, five hundred thirty-nine".