11525636530 has 32 divisors (see below), whose sum is σ = 21376466496. Its totient is φ = 4470997824.

The previous prime is 11525636527. The next prime is 11525636543. The reversal of 11525636530 is 3563652511.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 11525636530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62857 + ... + 164323.

It is an arithmetic number, because the mean of its divisors is an integer number (668014578).

Almost surely, 2^11525636530 is an apocalyptic number.

11525636530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11525636530 is a deficient number, since it is larger than the sum of its proper divisors (9850829966).

11525636530 is a wasteful number, since it uses less digits than its factorization.

11525636530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101818.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 11525636530 in words is "eleven billion, five hundred twenty-five million, six hundred thirty-six thousand, five hundred thirty".