25532535340 has 24 divisors (see below), whose sum is σ = 57742811280. Its totient is φ = 9427397568.

The previous prime is 25532535307. The next prime is 25532535349. The reversal of 25532535340 is 4353523552.

It is a self number, because there is not a number n which added to its sum of digits gives 25532535340.

It is not an unprimeable number, because it can be changed into a prime (25532535349) 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 7 ways as a sum of consecutive naturals, for example, 49100770 + ... + 49101289.

It is an arithmetic number, because the mean of its divisors is an integer number (2405950470).

Almost surely, 2^25532535340 is an apocalyptic number.

25532535340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25532535340 is an abundant number, since it is smaller than the sum of its proper divisors (32210275940).

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

25532535340 is a wasteful number, since it uses less digits than its factorization.

25532535340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98202081 (or 98202079 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 37.

The spelling of 25532535340 in words is "twenty-five billion, five hundred thirty-two million, five hundred thirty-five thousand, three hundred forty".