12553245 has 16 divisors (see below), whose sum is σ = 22317120. Its totient is φ = 6694992.

The previous prime is 12553241. The next prime is 12553271. The reversal of 12553245 is 54235521.

It is a happy number.

12553245 is a `hidden beast` number, since 125 + 532 + 4 + 5 = 666.

It is not a de Polignac number, because 12553245 - 2² = 12553241 is a prime.

It is a super-3 number, since 3×12553245³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46359 + ... + 46628.

It is an arithmetic number, because the mean of its divisors is an integer number (1394820).

Almost surely, 2^12553245 is an apocalyptic number.

12553245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12553245 is a deficient number, since it is larger than the sum of its proper divisors (9763875).

12553245 is an equidigital number, since it uses as much as digits as its factorization.

12553245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93001 (or 92995 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 12553245 is about 3543.0558844026. The cubic root of 12553245 is about 232.4084967709.

Adding to 12553245 its reverse (54235521), we get a palindrome (66788766).

The spelling of 12553245 in words is "twelve million, five hundred fifty-three thousand, two hundred forty-five".