12553775 has 36 divisors (see below), whose sum is σ = 17858232. Its totient is φ = 8700480.

The previous prime is 12553753. The next prime is 12553777. The reversal of 12553775 is 57735521.

It is not a de Polignac number, because 12553775 - 2¹⁰ = 12552751 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 (12553777) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 117272 + ... + 117378.

It is an arithmetic number, because the mean of its divisors is an integer number (496062).

Almost surely, 2^12553775 is an apocalyptic number.

12553775 is a deficient number, since it is larger than the sum of its proper divisors (5304457).

12553775 is a wasteful number, since it uses less digits than its factorization.

12553775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 144 counting only the distinct ones).

The product of its digits is 36750, while the sum is 35.

The square root of 12553775 is about 3543.1306778046. The cubic root of 12553775 is about 232.4117674994.

The spelling of 12553775 in words is "twelve million, five hundred fifty-three thousand, seven hundred seventy-five".