2505605142 has 16 divisors (see below), whose sum is σ = 5229089280. Its totient is φ = 798888552.

The previous prime is 2505605131. The next prime is 2505605143. The reversal of 2505605142 is 2415065052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505605143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9078142 + ... + 9078417.

It is an arithmetic number, because the mean of its divisors is an integer number (326818080).

Almost surely, 2^2505605142 is an apocalyptic number.

2505605142 is an abundant number, since it is smaller than the sum of its proper divisors (2723484138).

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

2505605142 is a wasteful number, since it uses less digits than its factorization.

2505605142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18156587.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 2505605142 is about 50056.0200375539. The cubic root of 2505605142 is about 1358.2223642703. Note that the first 3 decimals are identical.

The spelling of 2505605142 in words is "two billion, five hundred five million, six hundred five thousand, one hundred forty-two".