2547987192 has 48 divisors (see below), whose sum is σ = 7156389240. Its totient is φ = 849328416.

The previous prime is 2547987139. The next prime is 2547987199. The reversal of 2547987192 is 2917897452.

2547987192 is a `hidden beast` number, since 2 + 5 + 479 + 87 + 1 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2547987199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 653403 + ... + 657290.

Almost surely, 2^2547987192 is an apocalyptic number.

It is an amenable number.

2547987192 is an abundant number, since it is smaller than the sum of its proper divisors (4608402048).

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

2547987192 is a wasteful number, since it uses less digits than its factorization.

2547987192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310714 (or 1310698 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 2547987192 is about 50477.5909884773. The cubic root of 2547987192 is about 1365.8376503325.

The spelling of 2547987192 in words is "two billion, five hundred forty-seven million, nine hundred eighty-seven thousand, one hundred ninety-two".