11552766525 has 18 divisors (see below), whose sum is σ = 20692288890. Its totient is φ = 6161475360.

The previous prime is 11552766499. The next prime is 11552766541. The reversal of 11552766525 is 52566725511.

11552766525 is a `hidden beast` number, since 1 + 1 + 5 + 52 + 76 + 6 + 525 = 666.

11552766525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 667808964 + 10884957561 = 25842^2 + 104331^2 .

It is not a de Polignac number, because 11552766525 - 2⁵ = 11552766493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25672590 + ... + 25673039.

It is an arithmetic number, because the mean of its divisors is an integer number (1149571605).

Almost surely, 2^11552766525 is an apocalyptic number.

11552766525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11552766525 is a deficient number, since it is larger than the sum of its proper divisors (9139522365).

11552766525 is a wasteful number, since it uses less digits than its factorization.

11552766525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51345645 (or 51345637 counting only the distinct ones).

The product of its digits is 630000, while the sum is 45.

The spelling of 11552766525 in words is "eleven billion, five hundred fifty-two million, seven hundred sixty-six thousand, five hundred twenty-five".