2540872528 has 20 divisors (see below), whose sum is σ = 5003646388. Its totient is φ = 1249608960.

The previous prime is 2540872511. The next prime is 2540872553. The reversal of 2540872528 is 8252780452.

It can be written as a sum of positive squares in 2 ways, for example, as 1291108624 + 1249763904 = 35932^2 + 35352^2 .

It is a super-2 number, since 2×2540872528² = 12912066407090221568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300701 + ... + 1302652.

Almost surely, 2^2540872528 is an apocalyptic number.

It is an amenable number.

2540872528 is a deficient number, since it is larger than the sum of its proper divisors (2462773860).

2540872528 is a wasteful number, since it uses less digits than its factorization.

2540872528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603422 (or 2603416 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 43.

The square root of 2540872528 is about 50407.0682345244. The cubic root of 2540872528 is about 1364.5652035102.

The spelling of 2540872528 in words is "two billion, five hundred forty million, eight hundred seventy-two thousand, five hundred twenty-eight".