2545174540 has 12 divisors (see below), whose sum is σ = 5344866576. Its totient is φ = 1018069808.

The previous prime is 2545174529. The next prime is 2545174579. The reversal of 2545174540 is 454715452.

It is a self number, because there is not a number n which added to its sum of digits gives 2545174540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63629344 + ... + 63629383.

It is an arithmetic number, because the mean of its divisors is an integer number (445405548).

Almost surely, 2^2545174540 is an apocalyptic number.

2545174540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545174540 is an abundant number, since it is smaller than the sum of its proper divisors (2799692036).

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

2545174540 is a wasteful number, since it uses less digits than its factorization.

2545174540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127258736 (or 127258734 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 37.

The square root of 2545174540 is about 50449.7228931934. The cubic root of 2545174540 is about 1365.3348952646.

Adding to 2545174540 its reverse (454715452), we get a palindrome (2999889992).

The spelling of 2545174540 in words is "two billion, five hundred forty-five million, one hundred seventy-four thousand, five hundred forty".