25555363859960 has 512 divisors, whose sum is σ = 68404354744320. Its totient is φ = 8498623795200.

The previous prime is 25555363859951. The next prime is 25555363859969. The reversal of 25555363859960 is 6995836355552.

It is an interprime number because it is at equal distance from previous prime (25555363859951) and next prime (25555363859969).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25555363859969) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 4373668799 + ... + 4373674641.

It is an arithmetic number, because the mean of its divisors is an integer number (133602255360).

Almost surely, 2^{25555363859960} is an apocalyptic number.

25555363859960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25555363859960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34202177372160).

25555363859960 is an abundant number, since it is smaller than the sum of its proper divisors (42848990884360).

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

25555363859960 is a wasteful number, since it uses less digits than its factorization.

25555363859960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6139 (or 6135 counting only the distinct ones).

The product of its (nonzero) digits is 1312200000, while the sum is 71.

The spelling of 25555363859960 in words is "twenty-five trillion, five hundred fifty-five billion, three hundred sixty-three million, eight hundred fifty-nine thousand, nine hundred sixty".