12450553 has 4 divisors (see below), whose sum is σ = 12496768. Its totient is φ = 12404340.

The previous prime is 12450551. The next prime is 12450563. The reversal of 12450553 is 35505421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12450553 - 2¹ = 12450551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12450551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22701 + ... + 23242.

It is an arithmetic number, because the mean of its divisors is an integer number (3124192).

Almost surely, 2^12450553 is an apocalyptic number.

It is an amenable number.

12450553 is a deficient number, since it is larger than the sum of its proper divisors (46215).

12450553 is an equidigital number, since it uses as much as digits as its factorization.

12450553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46214.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 12450553 is about 3528.5341148981. The cubic root of 12450553 is about 231.7730204244.

Adding to 12450553 its reverse (35505421), we get a palindrome (47955974).

The spelling of 12450553 in words is "twelve million, four hundred fifty thousand, five hundred fifty-three".