25545523134 has 16 divisors (see below), whose sum is σ = 51197713920. Its totient is φ = 8497396440.

The previous prime is 25545523097. The next prime is 25545523139. The reversal of 25545523134 is 43132554552.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25545523092 and 25545523101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25545523139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4441372 + ... + 4447119.

It is an arithmetic number, because the mean of its divisors is an integer number (3199857120).

Almost surely, 2^25545523134 is an apocalyptic number.

25545523134 is an abundant number, since it is smaller than the sum of its proper divisors (25652190786).

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

25545523134 is a wasteful number, since it uses less digits than its factorization.

25545523134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8888975.

The product of its digits is 360000, while the sum is 39.

The spelling of 25545523134 in words is "twenty-five billion, five hundred forty-five million, five hundred twenty-three thousand, one hundred thirty-four".