2575105623 has 12 divisors (see below), whose sum is σ = 3720147808. Its totient is φ = 1716482880.

The previous prime is 2575105609. The next prime is 2575105633. The reversal of 2575105623 is 3265015752.

2575105623 is a `hidden beast` number, since 2 + 575 + 10 + 56 + 23 = 666.

It is not a de Polignac number, because 2575105623 - 2⁵ = 2575105591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2575105633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58911 + ... + 92847.

Almost surely, 2^2575105623 is an apocalyptic number.

2575105623 is a deficient number, since it is larger than the sum of its proper divisors (1145042185).

2575105623 is a wasteful number, since it uses less digits than its factorization.

2575105623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42374 (or 42371 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 2575105623 is about 50745.4985491324. The cubic root of 2575105623 is about 1370.6661336880. Note that the first 3 decimals are identical.

The spelling of 2575105623 in words is "two billion, five hundred seventy-five million, one hundred five thousand, six hundred twenty-three".