11525573552511 has 4 divisors (see below), whose sum is σ = 15367431403352. Its totient is φ = 7683715701672.

The previous prime is 11525573552503. The next prime is 11525573552567. The reversal of 11525573552511 is 11525537552511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11525573552511 - 2³ = 11525573552503 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 (11525573554511) 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, 1920928925416 + ... + 1920928925421.

It is an arithmetic number, because the mean of its divisors is an integer number (3841857850838).

Almost surely, 2^{11525573552511} is an apocalyptic number.

11525573552511 is a deficient number, since it is larger than the sum of its proper divisors (3841857850841).

11525573552511 is an equidigital number, since it uses as much as digits as its factorization.

11525573552511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841857850840.

The product of its digits is 1312500, while the sum is 48.

Subtracting from 11525573552511 its reverse (11525537552511), we obtain a square (36000000 = 6000²).

The spelling of 11525573552511 in words is "eleven trillion, five hundred twenty-five billion, five hundred seventy-three million, five hundred fifty-two thousand, five hundred eleven".