2547531755 has 4 divisors (see below), whose sum is σ = 3057038112. Its totient is φ = 2038025400.

The previous prime is 2547531737. The next prime is 2547531803. The reversal of 2547531755 is 5571357452.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2547531755 - 2¹² = 2547527659 is a prime.

It is a Duffinian 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, 254753171 + ... + 254753180.

It is an arithmetic number, because the mean of its divisors is an integer number (764259528).

Almost surely, 2^2547531755 is an apocalyptic number.

2547531755 is a deficient number, since it is larger than the sum of its proper divisors (509506357).

2547531755 is an equidigital number, since it uses as much as digits as its factorization.

2547531755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509506356.

The product of its digits is 735000, while the sum is 44.

The square root of 2547531755 is about 50473.0795077931. The cubic root of 2547531755 is about 1365.7562671306.

The spelling of 2547531755 in words is "two billion, five hundred forty-seven million, five hundred thirty-one thousand, seven hundred fifty-five".