25442540532 has 96 divisors (see below), whose sum is σ = 66374380800. Its totient is φ = 8428032000.

The previous prime is 25442540531. The next prime is 25442540551. The reversal of 25442540532 is 23504524452.

25442540532 is a `hidden beast` number, since 2 + 544 + 25 + 40 + 53 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25442540531) 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 31 ways as a sum of consecutive naturals, for example, 13467844 + ... + 13469732.

It is an arithmetic number, because the mean of its divisors is an integer number (691399800).

Almost surely, 2^25442540532 is an apocalyptic number.

It is an amenable number.

25442540532 is an abundant number, since it is smaller than the sum of its proper divisors (40931840268).

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

25442540532 is a wasteful number, since it uses less digits than its factorization.

25442540532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The spelling of 25442540532 in words is "twenty-five billion, four hundred forty-two million, five hundred forty thousand, five hundred thirty-two".