2547674645 has 4 divisors (see below), whose sum is σ = 3057209580. Its totient is φ = 2038139712.

The previous prime is 2547674617. The next prime is 2547674653. The reversal of 2547674645 is 5464767452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1144198276 + 1403476369 = 33826^2 + 37463^2 .

It is a cyclic number.

It is not a de Polignac number, because 2547674645 - 2¹⁴ = 2547658261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2547674593 and 2547674602.

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, 254767460 + ... + 254767469.

It is an arithmetic number, because the mean of its divisors is an integer number (764302395).

Almost surely, 2^2547674645 is an apocalyptic number.

It is an amenable number.

2547674645 is a deficient number, since it is larger than the sum of its proper divisors (509534935).

2547674645 is an equidigital number, since it uses as much as digits as its factorization.

2547674645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509534934.

The product of its digits is 5644800, while the sum is 50.

The square root of 2547674645 is about 50474.4949949972. The cubic root of 2547674645 is about 1365.7818015541.

The spelling of 2547674645 in words is "two billion, five hundred forty-seven million, six hundred seventy-four thousand, six hundred forty-five".