2505342128 has 40 divisors (see below), whose sum is σ = 5274424320. Its totient is φ = 1148454720.

The previous prime is 2505342127. The next prime is 2505342143. The reversal of 2505342128 is 8212435052.

It is a junction number, because it is equal to n+sod(n) for n = 2505342094 and 2505342103.

It is not an unprimeable number, because it can be changed into a prime (2505342121) 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, 123500 + ... + 142347.

It is an arithmetic number, because the mean of its divisors is an integer number (131860608).

Almost surely, 2^2505342128 is an apocalyptic number.

It is an amenable number.

2505342128 is an abundant number, since it is smaller than the sum of its proper divisors (2769082192).

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

2505342128 is a wasteful number, since it uses less digits than its factorization.

2505342128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265905 (or 265899 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 2505342128 is about 50053.3927721189. The cubic root of 2505342128 is about 1358.1748382933.

The spelling of 2505342128 in words is "two billion, five hundred five million, three hundred forty-two thousand, one hundred twenty-eight".