2505128548140 has 144 divisors (see below), whose sum is σ = 8029016599968. Its totient is φ = 655429791744.

The previous prime is 2505128548123. The next prime is 2505128548163. The reversal of 2505128548140 is 418458215052.

2505128548140 is a `hidden beast` number, since 2 + 5 + 0 + 5 + 128 + 5 + 481 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4605237 + ... + 5120396.

It is an arithmetic number, because the mean of its divisors is an integer number (55757059722).

Almost surely, 2^{2505128548140} is an apocalyptic number.

2505128548140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505128548140 is an abundant number, since it is smaller than the sum of its proper divisors (5523888051828).

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

2505128548140 is a wasteful number, since it uses less digits than its factorization.

2505128548140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9725710 (or 9725696 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 45.

The spelling of 2505128548140 in words is "two trillion, five hundred five billion, one hundred twenty-eight million, five hundred forty-eight thousand, one hundred forty".