12251553 has 8 divisors (see below), whose sum is σ = 16579488. Its totient is φ = 8045664.

The previous prime is 12251549. The next prime is 12251567. The reversal of 12251553 is 35515221.

It is a happy number.

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

It is not a de Polignac number, because 12251553 - 2² = 12251549 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12251053) 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 7 ways as a sum of consecutive naturals, for example, 30276 + ... + 30677.

It is an arithmetic number, because the mean of its divisors is an integer number (2072436).

Almost surely, 2^12251553 is an apocalyptic number.

It is an amenable number.

12251553 is a deficient number, since it is larger than the sum of its proper divisors (4327935).

12251553 is an equidigital number, since it uses as much as digits as its factorization.

12251553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61023.

The product of its digits is 1500, while the sum is 24.

The square root of 12251553 is about 3500.2218501118. The cubic root of 12251553 is about 230.5315556982.

Adding to 12251553 its reverse (35515221), we get a palindrome (47766774).

The spelling of 12251553 in words is "twelve million, two hundred fifty-one thousand, five hundred fifty-three".