2549188872 has 24 divisors (see below), whose sum is σ = 6904053390. Its totient is φ = 849729600.

The previous prime is 2549188861. The next prime is 2549188883. The reversal of 2549188872 is 2788819452.

2549188872 is a `hidden beast` number, since 2 + 5 + 491 + 8 + 88 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (2549188861) and next prime (2549188883).

It can be written as a sum of positive squares in only one way, i.e., 1423854756 + 1125334116 = 37734^2 + 33546^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17702629 + ... + 17702772.

Almost surely, 2^2549188872 is an apocalyptic number.

It is an amenable number.

2549188872 is an abundant number, since it is smaller than the sum of its proper divisors (4354864518).

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

2549188872 is a wasteful number, since it uses less digits than its factorization.

2549188872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35405413 (or 35405406 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 2549188872 is about 50489.4926890734. The cubic root of 2549188872 is about 1366.0523350632.

The spelling of 2549188872 in words is "two billion, five hundred forty-nine million, one hundred eighty-eight thousand, eight hundred seventy-two".