12553450 has 96 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 3801600.

The previous prime is 12553417. The next prime is 12553451. The reversal of 12553450 is 5435521.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12553451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141006 + ... + 141094.

It is an arithmetic number, because the mean of its divisors is an integer number (312480).

Almost surely, 2^12553450 is an apocalyptic number.

12553450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12553450 is an abundant number, since it is smaller than the sum of its proper divisors (17444630).

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

12553450 is a wasteful number, since it uses less digits than its factorization.

12553450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 147 counting only the distinct ones).

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

The square root of 12553450 is about 3543.0848141133. The cubic root of 12553450 is about 232.4097618749.

Adding to 12553450 its reverse (5435521), we get a palindrome (17988971).

The spelling of 12553450 in words is "twelve million, five hundred fifty-three thousand, four hundred fifty".