2545361440 has 48 divisors (see below), whose sum is σ = 6059370240. Its totient is φ = 1010364160.

The previous prime is 2545361419. The next prime is 2545361449. The reversal of 2545361440 is 441635452.

It is a junction number, because it is equal to n+sod(n) for n = 2545361396 and 2545361405.

It is not an unprimeable number, because it can be changed into a prime (2545361449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39760 + ... + 81679.

It is an arithmetic number, because the mean of its divisors is an integer number (126236880).

Almost surely, 2^2545361440 is an apocalyptic number.

2545361440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545361440 is an abundant number, since it is smaller than the sum of its proper divisors (3514008800).

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

2545361440 is a wasteful number, since it uses less digits than its factorization.

2545361440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121585 (or 121577 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 2545361440 is about 50451.5751984019. The cubic root of 2545361440 is about 1365.3683146945.

Adding to 2545361440 its reverse (441635452), we get a palindrome (2986996892).

The spelling of 2545361440 in words is "two billion, five hundred forty-five million, three hundred sixty-one thousand, four hundred forty".