12503355 has 8 divisors (see below), whose sum is σ = 20005392. Its totient is φ = 6668448.

The previous prime is 12503341. The next prime is 12503357. The reversal of 12503355 is 55330521.

12503355 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12503355 - 2¹³ = 12495163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12503357) 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, 416764 + ... + 416793.

It is an arithmetic number, because the mean of its divisors is an integer number (2500674).

Almost surely, 2^12503355 is an apocalyptic number.

12503355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12503355 is a deficient number, since it is larger than the sum of its proper divisors (7502037).

12503355 is an equidigital number, since it uses as much as digits as its factorization.

12503355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833565.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 12503355 is about 3536.0083427503. The cubic root of 12503355 is about 232.1002031973.

Adding to 12503355 its reverse (55330521), we get a palindrome (67833876).

The spelling of 12503355 in words is "twelve million, five hundred three thousand, three hundred fifty-five".