12554998 has 4 divisors (see below), whose sum is σ = 18832500. Its totient is φ = 6277498.

The previous prime is 12554981. The next prime is 12555041. The reversal of 12554998 is 89945521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89945521 = 17 ⋅5290913.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3138748 + ... + 3138751.

It is an arithmetic number, because the mean of its divisors is an integer number (4708125).

Almost surely, 2^12554998 is an apocalyptic number.

12554998 is a deficient number, since it is larger than the sum of its proper divisors (6277502).

12554998 is an equidigital number, since it uses as much as digits as its factorization.

12554998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277501.

The product of its digits is 129600, while the sum is 43.

The square root of 12554998 is about 3543.3032610828. The cubic root of 12554998 is about 232.4193145085.

The spelling of 12554998 in words is "twelve million, five hundred fifty-four thousand, nine hundred ninety-eight".