2505668146 has 4 divisors (see below), whose sum is σ = 3758502222. Its totient is φ = 1252834072.

The previous prime is 2505668141. The next prime is 2505668161. The reversal of 2505668146 is 6418665052.

2505668146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2200641921 + 305026225 = 46911^2 + 17465^2 .

It is not an unprimeable number, because it can be changed into a prime (2505668141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626417035 + ... + 626417038.

Almost surely, 2^2505668146 is an apocalyptic number.

2505668146 is a deficient number, since it is larger than the sum of its proper divisors (1252834076).

2505668146 is a wasteful number, since it uses less digits than its factorization.

2505668146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252834075.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 2505668146 is about 50056.6493684905. The cubic root of 2505668146 is about 1358.2337484430.

The spelling of 2505668146 in words is "two billion, five hundred five million, six hundred sixty-eight thousand, one hundred forty-six".