2545240446 has 48 divisors (see below), whose sum is σ = 6319248000. Its totient is φ = 725279184.

The previous prime is 2545240441. The next prime is 2545240531. The reversal of 2545240446 is 6440425452.

It is a self number, because there is not a number n which added to its sum of digits gives 2545240446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545240441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21105 + ... + 74403.

It is an arithmetic number, because the mean of its divisors is an integer number (131651000).

Almost surely, 2^2545240446 is an apocalyptic number.

2545240446 is an abundant number, since it is smaller than the sum of its proper divisors (3774007554).

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

2545240446 is a wasteful number, since it uses less digits than its factorization.

2545240446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53693 (or 53690 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The square root of 2545240446 is about 50450.3760739204. The cubic root of 2545240446 is about 1365.3466800471.

Adding to 2545240446 its reverse (6440425452), we get a palindrome (8985665898).

The spelling of 2545240446 in words is "two billion, five hundred forty-five million, two hundred forty thousand, four hundred forty-six".