12550765 has 16 divisors (see below), whose sum is σ = 15752880. Its totient is φ = 9587200.

The previous prime is 12550763. The next prime is 12550787. The reversal of 12550765 is 56705521.

It can be written as a sum of positive squares in 8 ways, for example, as 2778889 + 9771876 = 1667^2 + 3126^2 .

It is not a de Polignac number, because 12550765 - 2¹ = 12550763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14217 + ... + 15073.

It is an arithmetic number, because the mean of its divisors is an integer number (984555).

Almost surely, 2^12550765 is an apocalyptic number.

It is an amenable number.

12550765 is a deficient number, since it is larger than the sum of its proper divisors (3202115).

12550765 is a wasteful number, since it uses less digits than its factorization.

12550765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 12550765 is about 3542.7058867482. The cubic root of 12550765 is about 232.3931910064.

The spelling of 12550765 in words is "twelve million, five hundred fifty thousand, seven hundred sixty-five".