12507755 has 16 divisors (see below), whose sum is σ = 16240224. Its totient is φ = 9192960.

The previous prime is 12507721. The next prime is 12507763. The reversal of 12507755 is 55770521.

It is not a de Polignac number, because 12507755 - 2¹⁶ = 12442219 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21620 + ... + 22190.

It is an arithmetic number, because the mean of its divisors is an integer number (1015014).

Almost surely, 2^12507755 is an apocalyptic number.

12507755 is a deficient number, since it is larger than the sum of its proper divisors (3732469).

12507755 is a wasteful number, since it uses less digits than its factorization.

12507755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 12507755 is about 3536.6304585014. The cubic root of 12507755 is about 232.1274257874.

The spelling of 12507755 in words is "twelve million, five hundred seven thousand, seven hundred fifty-five".