249940520516 has 12 divisors (see below), whose sum is σ = 451505456640. Its totient is φ = 120938961480.

The previous prime is 249940520471. The next prime is 249940520521. The reversal of 249940520516 is 615025049942.

249940520516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1007824556 + ... + 1007824803.

It is an arithmetic number, because the mean of its divisors is an integer number (37625454720).

Almost surely, 2^249940520516 is an apocalyptic number.

It is an amenable number.

249940520516 is a deficient number, since it is larger than the sum of its proper divisors (201564936124).

249940520516 is a wasteful number, since it uses less digits than its factorization.

249940520516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015649394 (or 2015649392 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 249940520516 in words is "two hundred forty-nine billion, nine hundred forty million, five hundred twenty thousand, five hundred sixteen".