25555050525280 has 48 divisors (see below), whose sum is σ = 60496767962064. Its totient is φ = 10201201400320.

The previous prime is 25555050525217. The next prime is 25555050525283. The reversal of 25555050525280 is 8252505055552.

It is a super-2 number, since 2×25555050525280² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25555050525283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162568147 + ... + 162725266.

It is an arithmetic number, because the mean of its divisors is an integer number (1260349332543).

Almost surely, 2^{25555050525280} is an apocalyptic number.

25555050525280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25555050525280 is an abundant number, since it is smaller than the sum of its proper divisors (34941717436784).

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

25555050525280 is a wasteful number, since it uses less digits than its factorization.

25555050525280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325293919 (or 325293911 counting only the distinct ones).

The product of its (nonzero) digits is 5000000, while the sum is 49.

The spelling of 25555050525280 in words is "twenty-five trillion, five hundred fifty-five billion, fifty million, five hundred twenty-five thousand, two hundred eighty".