25550145441 has 32 divisors (see below), whose sum is σ = 38057500800. Its totient is φ = 16941173760.

The previous prime is 25550145407. The next prime is 25550145473. The reversal of 25550145441 is 14454105552.

25550145441 is a `hidden beast` number, since 2 + 5 + 550 + 14 + 54 + 41 = 666.

It is not a de Polignac number, because 25550145441 - 2⁶ = 25550145377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25550145396 and 25550145405.

It is not an unprimeable number, because it can be changed into a prime (25550145641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6355330 + ... + 6359348.

It is an arithmetic number, because the mean of its divisors is an integer number (1189296900).

Almost surely, 2^25550145441 is an apocalyptic number.

It is an amenable number.

25550145441 is a deficient number, since it is larger than the sum of its proper divisors (12507355359).

25550145441 is a wasteful number, since it uses less digits than its factorization.

25550145441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246 (or 5240 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 25550145441 in words is "twenty-five billion, five hundred fifty million, one hundred forty-five thousand, four hundred forty-one".