2542121525 has 12 divisors (see below), whose sum is σ = 3154402272. Its totient is φ = 2032296240.

The previous prime is 2542121513. The next prime is 2542121531. The reversal of 2542121525 is 5251212452.

It is a happy number.

2542121525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2542121525 - 2⁸ = 2542121269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2792 + ... + 71358.

It is an arithmetic number, because the mean of its divisors is an integer number (262866856).

Almost surely, 2^2542121525 is an apocalyptic number.

2542121525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2542121525 is a deficient number, since it is larger than the sum of its proper divisors (612280747).

2542121525 is a wasteful number, since it uses less digits than its factorization.

2542121525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70060 (or 70055 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 2542121525 is about 50419.4558181661. The cubic root of 2542121525 is about 1364.7887564617.

Adding to 2542121525 its reverse (5251212452), we get a palindrome (7793333977).

The spelling of 2542121525 in words is "two billion, five hundred forty-two million, one hundred twenty-one thousand, five hundred twenty-five".