12554444523 has 8 divisors (see below), whose sum is σ = 16989099328. Its totient is φ = 8244709704.

The previous prime is 12554444519. The next prime is 12554444557. The reversal of 12554444523 is 32544445521.

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

It is not a de Polignac number, because 12554444523 - 2² = 12554444519 is a prime.

It is a super-2 number, since 2×12554444523² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12554444923) 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, 31229761 + ... + 31230162.

It is an arithmetic number, because the mean of its divisors is an integer number (2123637416).

Almost surely, 2^12554444523 is an apocalyptic number.

12554444523 is a deficient number, since it is larger than the sum of its proper divisors (4434654805).

12554444523 is an equidigital number, since it uses as much as digits as its factorization.

12554444523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62459993.

The product of its digits is 384000, while the sum is 39.

The spelling of 12554444523 in words is "twelve billion, five hundred fifty-four million, four hundred forty-four thousand, five hundred twenty-three".