2545115247 has 12 divisors (see below), whose sum is σ = 3683958720. Its totient is φ = 1693198368.

The previous prime is 2545115233. The next prime is 2545115249. The reversal of 2545115247 is 7425115452.

2545115247 is a `hidden beast` number, since 2 + 54 + 511 + 52 + 47 = 666.

It is not a de Polignac number, because 2545115247 - 2⁷ = 2545115119 is a prime.

It is a super-2 number, since 2×2545115247² = 12955223241023742018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545115249) 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, 290878 + ... + 299499.

It is an arithmetic number, because the mean of its divisors is an integer number (306996560).

Almost surely, 2^2545115247 is an apocalyptic number.

2545115247 is a deficient number, since it is larger than the sum of its proper divisors (1138843473).

2545115247 is a wasteful number, since it uses less digits than its factorization.

2545115247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590862 (or 590859 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 2545115247 is about 50449.1352453142. The cubic root of 2545115247 is about 1365.3242927920.

The spelling of 2545115247 in words is "two billion, five hundred forty-five million, one hundred fifteen thousand, two hundred forty-seven".