12553501 has 4 divisors (see below), whose sum is σ = 12704832. Its totient is φ = 12402172.

The previous prime is 12553493. The next prime is 12553511. The reversal of 12553501 is 10535521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10535521 = 571 ⋅18451.

It is a cyclic number.

It is not a de Polignac number, because 12553501 - 2³ = 12553493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553511) 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, 75541 + ... + 75706.

It is an arithmetic number, because the mean of its divisors is an integer number (3176208).

Almost surely, 2^12553501 is an apocalyptic number.

It is an amenable number.

12553501 is a deficient number, since it is larger than the sum of its proper divisors (151331).

12553501 is an equidigital number, since it uses as much as digits as its factorization.

12553501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151330.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 12553501 is about 3543.0920112241. The cubic root of 12553501 is about 232.4100766059.

The spelling of 12553501 in words is "twelve million, five hundred fifty-three thousand, five hundred one".