12554457 has 8 divisors (see below), whose sum is σ = 16826784. Its totient is φ = 8325888.

The previous prime is 12554453. The next prime is 12554461. The reversal of 12554457 is 75445521.

It is an interprime number because it is at equal distance from previous prime (12554453) and next prime (12554461).

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

It is not a de Polignac number, because 12554457 - 2² = 12554453 is a prime.

It is a super-2 number, since 2×12554457² = 315228781129698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12554453) 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, 10263 + ... + 11420.

It is an arithmetic number, because the mean of its divisors is an integer number (2103348).

Almost surely, 2^12554457 is an apocalyptic number.

It is an amenable number.

12554457 is a deficient number, since it is larger than the sum of its proper divisors (4272327).

12554457 is a wasteful number, since it uses less digits than its factorization.

12554457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21879.

The product of its digits is 28000, while the sum is 33.

The square root of 12554457 is about 3543.2269190669. The cubic root of 12554457 is about 232.4159761127.

Adding to 12554457 its reverse (75445521), we get a palindrome (87999978).

The spelling of 12554457 in words is "twelve million, five hundred fifty-four thousand, four hundred fifty-seven".