2547992 has 16 divisors (see below), whose sum is σ = 4844040. Its totient is φ = 1256256.

The previous prime is 2547989. The next prime is 2547997. The reversal of 2547992 is 2997452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2547997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1598 + ... + 2765.

2^2547992 is an apocalyptic number.

It is an amenable number.

2547992 is a deficient number, since it is larger than the sum of its proper divisors (2296048).

2547992 is a wasteful number, since it uses less digits than its factorization.

2547992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442 (or 4438 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 2547992 is about 1596.2430892568. The cubic root of 2547992 is about 136.5838509435.

The spelling of 2547992 in words is "two million, five hundred forty-seven thousand, nine hundred ninety-two".