25152522523 has 4 divisors (see below), whose sum is σ = 25170199648. Its totient is φ = 25134845400.

The previous prime is 25152522517. The next prime is 25152522529. The reversal of 25152522523 is 32522525152.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (25152522517) and next prime (25152522529).

It is a cyclic number.

It is not a de Polignac number, because 25152522523 - 2²¹ = 25150425371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25152522529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8836428 + ... + 8839273.

It is an arithmetic number, because the mean of its divisors is an integer number (6292549912).

Almost surely, 2^25152522523 is an apocalyptic number.

25152522523 is a deficient number, since it is larger than the sum of its proper divisors (17677125).

25152522523 is a wasteful number, since it uses less digits than its factorization.

25152522523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17677124.

The product of its digits is 60000, while the sum is 34.

The spelling of 25152522523 in words is "twenty-five billion, one hundred fifty-two million, five hundred twenty-two thousand, five hundred twenty-three".