25535105423040 has 112 divisors (see below), whose sum is σ = 81080746306560. Its totient is φ = 6808791444480.

The previous prime is 25535105422993. The next prime is 25535105423117. The reversal of 25535105423040 is 4032450153552.

It is a super-3 number, since 3×25535105423040³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25535105423040.

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 15 ways as a sum of consecutive naturals, for example, 10423281 + ... + 12637839.

It is an arithmetic number, because the mean of its divisors is an integer number (723935234880).

Almost surely, 2^{25535105423040} is an apocalyptic number.

25535105423040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25535105423040 is an abundant number, since it is smaller than the sum of its proper divisors (55545640883520).

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

25535105423040 is a wasteful number, since it uses less digits than its factorization.

25535105423040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226590 (or 2226580 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 25535105423040 its reverse (4032450153552), we get a palindrome (29567555576592).

The spelling of 25535105423040 in words is "twenty-five trillion, five hundred thirty-five billion, one hundred five million, four hundred twenty-three thousand, forty".