2546497509 has 16 divisors (see below), whose sum is σ = 3638712192. Its totient is φ = 1579963968.

The previous prime is 2546497493. The next prime is 2546497523. The reversal of 2546497509 is 9057946452.

It is not a de Polignac number, because 2546497509 - 2⁴ = 2546497493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2546497549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496174 + ... + 501279.

It is an arithmetic number, because the mean of its divisors is an integer number (227419512).

Almost surely, 2^2546497509 is an apocalyptic number.

It is an amenable number.

2546497509 is a deficient number, since it is larger than the sum of its proper divisors (1092214683).

2546497509 is a wasteful number, since it uses less digits than its factorization.

2546497509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997516.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The square root of 2546497509 is about 50462.8329466351. The cubic root of 2546497509 is about 1365.5714190387.

The spelling of 2546497509 in words is "two billion, five hundred forty-six million, four hundred ninety-seven thousand, five hundred nine".