11525444451 has 16 divisors (see below), whose sum is σ = 17663517600. Its totient is φ = 7418676384.

The previous prime is 11525444449. The next prime is 11525444521. The reversal of 11525444451 is 15444452511.

11525444451 is a `hidden beast` number, since 1 + 1 + 525 + 44 + 44 + 51 = 666.

It is not a de Polignac number, because 11525444451 - 2¹ = 11525444449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11525444401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7359016 + ... + 7360581.

It is an arithmetic number, because the mean of its divisors is an integer number (1103969850).

Almost surely, 2^11525444451 is an apocalyptic number.

11525444451 is a deficient number, since it is larger than the sum of its proper divisors (6138073149).

11525444451 is a wasteful number, since it uses less digits than its factorization.

11525444451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14719635 (or 14719629 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

Adding to 11525444451 its reverse (15444452511), we get a palindrome (26969896962).

The spelling of 11525444451 in words is "eleven billion, five hundred twenty-five million, four hundred forty-four thousand, four hundred fifty-one".