25055510442531 has 16 divisors (see below), whose sum is σ = 35372630244384. Its totient is φ = 15721040185344.

The previous prime is 25055510442527. The next prime is 25055510442553. The reversal of 25055510442531 is 13524401555052.

It is a happy number.

It is not a de Polignac number, because 25055510442531 - 2² = 25055510442527 is a prime.

It is a super-2 number, since 2×25055510442531² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25055510442931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13631655 + ... + 15360111.

It is an arithmetic number, because the mean of its divisors is an integer number (2210789390274).

Almost surely, 2^{25055510442531} is an apocalyptic number.

25055510442531 is a deficient number, since it is larger than the sum of its proper divisors (10317119801853).

25055510442531 is a wasteful number, since it uses less digits than its factorization.

25055510442531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012710.

The product of its (nonzero) digits is 600000, while the sum is 42.

Adding to 25055510442531 its reverse (13524401555052), we get a palindrome (38579911997583).

The spelling of 25055510442531 in words is "twenty-five trillion, fifty-five billion, five hundred ten million, four hundred forty-two thousand, five hundred thirty-one".