12553222451 has 8 divisors (see below), whose sum is σ = 15650770944. Its totient is φ = 9781731720.

The previous prime is 12553222441. The next prime is 12553222459. The reversal of 12553222451 is 15422235521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12553222451 - 2¹⁰ = 12553221427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12553222459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81514355 + ... + 81514508.

It is an arithmetic number, because the mean of its divisors is an integer number (1956346368).

Almost surely, 2^12553222451 is an apocalyptic number.

12553222451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12553222451 is a deficient number, since it is larger than the sum of its proper divisors (3097548493).

12553222451 is a wasteful number, since it uses less digits than its factorization.

12553222451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163028881.

The product of its digits is 24000, while the sum is 32.

Adding to 12553222451 its reverse (15422235521), we get a palindrome (27975457972).

The spelling of 12553222451 in words is "twelve billion, five hundred fifty-three million, two hundred twenty-two thousand, four hundred fifty-one".