2545562340 has 36 divisors (see below), whose sum is σ = 7721539644. Its totient is φ = 678816576.

The previous prime is 2545562323. The next prime is 2545562351. The reversal of 2545562340 is 432655452.

2545562340 is a `hidden beast` number, since 2 + 54 + 5 + 562 + 3 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1108090944 + 1437471396 = 33288^2 + 37914^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2545562295 and 2545562304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7070827 + ... + 7071186.

Almost surely, 2^2545562340 is an apocalyptic number.

2545562340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545562340 is an abundant number, since it is smaller than the sum of its proper divisors (5175977304).

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

2545562340 is a wasteful number, since it uses less digits than its factorization.

2545562340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14142028 (or 14142023 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The square root of 2545562340 is about 50453.5661772287. The cubic root of 2545562340 is about 1365.4042356281.

The spelling of 2545562340 in words is "two billion, five hundred forty-five million, five hundred sixty-two thousand, three hundred forty".