2505522399904 has 96 divisors (see below), whose sum is σ = 5057541006336. Its totient is φ = 1221286133760.

The previous prime is 2505522399871. The next prime is 2505522399923. The reversal of 2505522399904 is 4099932255052.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 559141344 + ... + 559145824.

It is an arithmetic number, because the mean of its divisors is an integer number (52682718816).

Almost surely, 2^{2505522399904} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2505522399904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528770503168).

2505522399904 is an abundant number, since it is smaller than the sum of its proper divisors (2552018606432).

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

2505522399904 is a wasteful number, since it uses less digits than its factorization.

2505522399904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5918 (or 5910 counting only the distinct ones).

The product of its (nonzero) digits is 8748000, while the sum is 55.

The spelling of 2505522399904 in words is "two trillion, five hundred five billion, five hundred twenty-two million, three hundred ninety-nine thousand, nine hundred four".