2545140648 has 16 divisors (see below), whose sum is σ = 6362851680. Its totient is φ = 848380208.

The previous prime is 2545140623. The next prime is 2545140667. The reversal of 2545140648 is 8460415452.

It is a happy number.

It is a super-3 number, since 3×2545140648³ (a number of 29 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 53023740 + ... + 53023787.

It is an arithmetic number, because the mean of its divisors is an integer number (397678230).

Almost surely, 2^2545140648 is an apocalyptic number.

It is an amenable number.

2545140648 is an abundant number, since it is smaller than the sum of its proper divisors (3817711032).

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

2545140648 is a wasteful number, since it uses less digits than its factorization.

2545140648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106047536 (or 106047532 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The square root of 2545140648 is about 50449.3869933025. The cubic root of 2545140648 is about 1365.3288348897.

The spelling of 2545140648 in words is "two billion, five hundred forty-five million, one hundred forty thousand, six hundred forty-eight".