12554399 has 8 divisors (see below), whose sum is σ = 14749392. Its totient is φ = 10535040.

The previous prime is 12554387. The next prime is 12554447. The reversal of 12554399 is 99345521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12554399 is a prime.

It is a super-2 number, since 2×12554399² = 315225868502402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554309) 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, 43754 + ... + 44039.

It is an arithmetic number, because the mean of its divisors is an integer number (1843674).

Almost surely, 2^12554399 is an apocalyptic number.

12554399 is a deficient number, since it is larger than the sum of its proper divisors (2194993).

12554399 is a wasteful number, since it uses less digits than its factorization.

12554399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87817.

The product of its digits is 48600, while the sum is 38.

The square root of 12554399 is about 3543.2187344278. The cubic root of 12554399 is about 232.4156182014.

The spelling of 12554399 in words is "twelve million, five hundred fifty-four thousand, three hundred ninety-nine".