25520041104 has 40 divisors (see below), whose sum is σ = 67459959072. Its totient is φ = 8308849920.

The previous prime is 25520041103. The next prime is 25520041139. The reversal of 25520041104 is 40114002552.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (25520041103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6180117 + ... + 6184244.

Almost surely, 2^25520041104 is an apocalyptic number.

25520041104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25520041104 is an abundant number, since it is smaller than the sum of its proper divisors (41939917968).

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

25520041104 is a wasteful number, since it uses less digits than its factorization.

25520041104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12364415 (or 12364409 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 25520041104 its reverse (40114002552), we get a palindrome (65634043656).

The spelling of 25520041104 in words is "twenty-five billion, five hundred twenty million, forty-one thousand, one hundred four".