8261525142 has 24 divisors (see below), whose sum is σ = 19276892544. Its totient is φ = 2542007664.

The previous prime is 8261525117. The next prime is 8261525159. The reversal of 8261525142 is 2415251628.

8261525142 is a `hidden beast` number, since 8 + 2 + 615 + 25 + 14 + 2 = 666.

8261525142 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8261525097 and 8261525106.

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, 17652598 + ... + 17653065.

It is an arithmetic number, because the mean of its divisors is an integer number (803203856).

Almost surely, 2^8261525142 is an apocalyptic number.

8261525142 is an abundant number, since it is smaller than the sum of its proper divisors (11015367402).

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

8261525142 is a wasteful number, since it uses less digits than its factorization.

8261525142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35305684 (or 35305681 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 8261525142 is about 90892.9322994918. The cubic root of 8261525142 is about 2021.5604990643.

The spelling of 8261525142 in words is "eight billion, two hundred sixty-one million, five hundred twenty-five thousand, one hundred forty-two".