25504552213140 has 192 divisors, whose sum is σ = 95882848266240. Its totient is φ = 4891982031360.

The previous prime is 25504552213123. The next prime is 25504552213159. The reversal of 25504552213140 is 4131225540552.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 212265550 + ... + 212385669.

It is an arithmetic number, because the mean of its divisors is an integer number (499389834720).

Almost surely, 2^{25504552213140} is an apocalyptic number.

25504552213140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25504552213140 is an abundant number, since it is smaller than the sum of its proper divisors (70378296053100).

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

25504552213140 is a wasteful number, since it uses less digits than its factorization.

25504552213140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424651262 (or 424651260 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 25504552213140 its reverse (4131225540552), we get a palindrome (29635777753692).

The spelling of 25504552213140 in words is "twenty-five trillion, five hundred four billion, five hundred fifty-two million, two hundred thirteen thousand, one hundred forty".