2540939547 has 16 divisors (see below), whose sum is σ = 3416394240. Its totient is φ = 1679776032.

The previous prime is 2540939519. The next prime is 2540939573. The reversal of 2540939547 is 7459390452.

It is not a de Polignac number, because 2540939547 - 2²⁷ = 2406721819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2540939496 and 2540939505.

It is not an unprimeable number, because it can be changed into a prime (2540939047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190633 + ... + 203525.

It is an arithmetic number, because the mean of its divisors is an integer number (213524640).

Almost surely, 2^2540939547 is an apocalyptic number.

2540939547 is a deficient number, since it is larger than the sum of its proper divisors (875454693).

2540939547 is a wasteful number, since it uses less digits than its factorization.

2540939547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13442.

The product of its (nonzero) digits is 1360800, while the sum is 48.

The square root of 2540939547 is about 50407.7330079423. The cubic root of 2540939547 is about 1364.5772008313.

The spelling of 2540939547 in words is "two billion, five hundred forty million, nine hundred thirty-nine thousand, five hundred forty-seven".