25434525320 has 32 divisors (see below), whose sum is σ = 57283934400. Its totient is φ = 10163809728.

The previous prime is 25434525227. The next prime is 25434525323. The reversal of 25434525320 is 2352543452.

It is a super-3 number, since 3×25434525320³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (25434525323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271244 + ... + 352763.

It is an arithmetic number, because the mean of its divisors is an integer number (1790122950).

Almost surely, 2^25434525320 is an apocalyptic number.

25434525320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25434525320 is an abundant number, since it is smaller than the sum of its proper divisors (31849409080).

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

25434525320 is a wasteful number, since it uses less digits than its factorization.

25434525320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625037 (or 625033 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 25434525320 in words is "twenty-five billion, four hundred thirty-four million, five hundred twenty-five thousand, three hundred twenty".