12554540 has 24 divisors (see below), whose sum is σ = 26728800. Its totient is φ = 4952448.

The previous prime is 12554533. The next prime is 12554557. The reversal of 12554540 is 4545521.

It is a super-2 number, since 2×12554540² = 315232949223200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2840 + ... + 5759.

It is an arithmetic number, because the mean of its divisors is an integer number (1113700).

Almost surely, 2^12554540 is an apocalyptic number.

12554540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12554540 is an abundant number, since it is smaller than the sum of its proper divisors (14174260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12554540 is a wasteful number, since it uses less digits than its factorization.

12554540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8681 (or 8679 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 12554540 is about 3543.2386315347. The cubic root of 12554540 is about 232.4164882943.

The spelling of 12554540 in words is "twelve million, five hundred fifty-four thousand, five hundred forty".