12522415522551 has 16 divisors (see below), whose sum is σ = 18215349005568. Its totient is φ = 7588956729600.

The previous prime is 12522415522543. The next prime is 12522415522567. The reversal of 12522415522551 is 15522551422521.

It is not a de Polignac number, because 12522415522551 - 2³ = 12522415522543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522415522541) 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, 8990971 + ... + 10289916.

It is an arithmetic number, because the mean of its divisors is an integer number (1138459312848).

Almost surely, 2^{12522415522551} is an apocalyptic number.

12522415522551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12522415522551 is a deficient number, since it is larger than the sum of its proper divisors (5692933483017).

12522415522551 is a wasteful number, since it uses less digits than its factorization.

12522415522551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19300582.

The product of its digits is 400000, while the sum is 42.

The spelling of 12522415522551 in words is "twelve trillion, five hundred twenty-two billion, four hundred fifteen million, five hundred twenty-two thousand, five hundred fifty-one".