12452544554 has 4 divisors (see below), whose sum is σ = 18678816834. Its totient is φ = 6226272276.

The previous prime is 12452544551. The next prime is 12452544569. The reversal of 12452544554 is 45544525421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8916458329 + 3536086225 = 94427^2 + 59465^2 .

It is not an unprimeable number, because it can be changed into a prime (12452544551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3113136137 + ... + 3113136140.

Almost surely, 2^12452544554 is an apocalyptic number.

12452544554 is a deficient number, since it is larger than the sum of its proper divisors (6226272280).

12452544554 is an equidigital number, since it uses as much as digits as its factorization.

12452544554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226272279.

The product of its digits is 640000, while the sum is 41.

The spelling of 12452544554 in words is "twelve billion, four hundred fifty-two million, five hundred forty-four thousand, five hundred fifty-four".