12255501 has 4 divisors (see below), whose sum is σ = 16340672. Its totient is φ = 8170332.

The previous prime is 12255499. The next prime is 12255511. The reversal of 12255501 is 10555221.

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 not a de Polignac number, because 12255501 - 2¹ = 12255499 is a prime.

It is a super-2 number, since 2×12255501² = 300394609522002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12255511) 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, 2042581 + ... + 2042586.

It is an arithmetic number, because the mean of its divisors is an integer number (4085168).

Almost surely, 2^12255501 is an apocalyptic number.

It is an amenable number.

12255501 is a deficient number, since it is larger than the sum of its proper divisors (4085171).

12255501 is an equidigital number, since it uses as much as digits as its factorization.

12255501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085170.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 12255501 is about 3500.7857689382. The cubic root of 12255501 is about 230.5563155752.

The spelling of 12255501 in words is "twelve million, two hundred fifty-five thousand, five hundred one".