25455332140 has 48 divisors (see below), whose sum is σ = 61929709632. Its totient is φ = 8607983616.

The previous prime is 25455332069. The next prime is 25455332171. The reversal of 25455332140 is 4123355452.

It is a junction number, because it is equal to n+sod(n) for n = 25455332096 and 25455332105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1235149 + ... + 1255588.

It is an arithmetic number, because the mean of its divisors is an integer number (1290202284).

Almost surely, 2^25455332140 is an apocalyptic number.

25455332140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25455332140 is an abundant number, since it is smaller than the sum of its proper divisors (36474377492).

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

25455332140 is a wasteful number, since it uses less digits than its factorization.

25455332140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490826 (or 2490824 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 25455332140 its reverse (4123355452), we get a palindrome (29578687592).

The spelling of 25455332140 in words is "twenty-five billion, four hundred fifty-five million, three hundred thirty-two thousand, one hundred forty".