2542123125 has 30 divisors (see below), whose sum is σ = 4588485902. Its totient is φ = 1355796000.

The previous prime is 2542123117. The next prime is 2542123141. The reversal of 2542123125 is 5213212452.

2542123125 is a `hidden beast` number, since 2 + 5 + 421 + 231 + 2 + 5 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 498450276 + 2043672849 = 22326^2 + 45207^2 .

It is not a de Polignac number, because 2542123125 - 2³ = 2542123117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 220342 + ... + 231591.

Almost surely, 2^2542123125 is an apocalyptic number.

2542123125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2542123125 is a deficient number, since it is larger than the sum of its proper divisors (2046362777).

2542123125 is an equidigital number, since it uses as much as digits as its factorization.

2542123125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451959 (or 451941 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2542123125 is about 50419.4716850544. The cubic root of 2542123125 is about 1364.7890427923.

Adding to 2542123125 its reverse (5213212452), we get a palindrome (7755335577).

The spelling of 2542123125 in words is "two billion, five hundred forty-two million, one hundred twenty-three thousand, one hundred twenty-five".