2505448788 has 24 divisors (see below), whose sum is σ = 6100223808. Its totient is φ = 798838656.

The previous prime is 2505448727. The next prime is 2505448817. The reversal of 2505448788 is 8878445052.

It is a self number, because there is not a number n which added to its sum of digits gives 2505448788.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4538581 + ... + 4539132.

It is an arithmetic number, because the mean of its divisors is an integer number (254175992).

Almost surely, 2^2505448788 is an apocalyptic number.

It is an amenable number.

2505448788 is an abundant number, since it is smaller than the sum of its proper divisors (3594775020).

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

2505448788 is a wasteful number, since it uses less digits than its factorization.

2505448788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9077743 (or 9077741 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 51.

The square root of 2505448788 is about 50054.4582230195. The cubic root of 2505448788 is about 1358.1941118915.

The spelling of 2505448788 in words is "two billion, five hundred five million, four hundred forty-eight thousand, seven hundred eighty-eight".