12554531 has 4 divisors (see below), whose sum is σ = 13695864. Its totient is φ = 11413200.

The previous prime is 12554501. The next prime is 12554533. The reversal of 12554531 is 13545521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13545521 = 11 ⋅1231411.

It is a cyclic number.

It is not a de Polignac number, because 12554531 - 2²² = 8360227 is a prime.

It is a super-2 number, since 2×12554531² = 315232497259922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12554531.

It is not an unprimeable number, because it can be changed into a prime (12554533) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 570650 + ... + 570671.

It is an arithmetic number, because the mean of its divisors is an integer number (3423966).

Almost surely, 2^12554531 is an apocalyptic number.

12554531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12554531 is a deficient number, since it is larger than the sum of its proper divisors (1141333).

12554531 is a wasteful number, since it uses less digits than its factorization.

12554531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141332.

The product of its digits is 3000, while the sum is 26.

The square root of 12554531 is about 3543.2373615100. The cubic root of 12554531 is about 232.4164327566.

The spelling of 12554531 in words is "twelve million, five hundred fifty-four thousand, five hundred thirty-one".