1249625028 has 24 divisors (see below), whose sum is σ = 2917249888. Its totient is φ = 416333376.

The previous prime is 1249624963. The next prime is 1249625053. The reversal of 1249625028 is 8205269421.

1249625028 is a nontrivial binomial coefficient, being equal to C(49993, 2).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 49992.

Almost surely, 2^1249625028 is an apocalyptic number.

1249625028 is the 49992-nd triangular number.

It is an amenable number.

1249625028 is an abundant number, since it is smaller than the sum of its proper divisors (1667624860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249625028 is a wasteful number, since it uses less digits than its factorization.

1249625028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52083 (or 52081 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 1249625028 is about 35350.0357567004. The cubic root of 1249625028 is about 1077.1096205523.

The spelling of 1249625028 in words is "one billion, two hundred forty-nine million, six hundred twenty-five thousand, twenty-eight".