25412503523 has 4 divisors (see below), whose sum is σ = 27722731128. Its totient is φ = 23102275920.

The previous prime is 25412503517. The next prime is 25412503537. The reversal of 25412503523 is 32530521452.

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

It is a cyclic number.

It is not a de Polignac number, because 25412503523 - 2²⁰ = 25411454947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25412503523.

It is not an unprimeable number, because it can be changed into a prime (25412503223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1155113786 + ... + 1155113807.

It is an arithmetic number, because the mean of its divisors is an integer number (6930682782).

Almost surely, 2^25412503523 is an apocalyptic number.

25412503523 is a deficient number, since it is larger than the sum of its proper divisors (2310227605).

25412503523 is a wasteful number, since it uses less digits than its factorization.

25412503523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310227604.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 25412503523 in words is "twenty-five billion, four hundred twelve million, five hundred three thousand, five hundred twenty-three".