25355231140 has 24 divisors (see below), whose sum is σ = 53282843712. Its totient is φ = 10135071840.

The previous prime is 25355231117. The next prime is 25355231189. The reversal of 25355231140 is 4113255352.

It is an unprimeable number.

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, 409126 + ... + 467005.

It is an arithmetic number, because the mean of its divisors is an integer number (2220118488).

Almost surely, 2^25355231140 is an apocalyptic number.

25355231140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25355231140 is an abundant number, since it is smaller than the sum of its proper divisors (27927612572).

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

25355231140 is a wasteful number, since it uses less digits than its factorization.

25355231140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877587 (or 877585 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 25355231140 its reverse (4113255352), we get a palindrome (29468486492).

The spelling of 25355231140 in words is "twenty-five billion, three hundred fifty-five million, two hundred thirty-one thousand, one hundred forty".