11525520630 has 64 divisors (see below), whose sum is σ = 29814478848. Its totient is φ = 2834628480.

The previous prime is 11525520623. The next prime is 11525520641. The reversal of 11525520630 is 3602552511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468087 + ... + 492093.

It is an arithmetic number, because the mean of its divisors is an integer number (465851232).

Almost surely, 2^11525520630 is an apocalyptic number.

11525520630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11525520630 is an abundant number, since it is smaller than the sum of its proper divisors (18288958218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11525520630 is a wasteful number, since it uses less digits than its factorization.

11525520630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25261.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 11525520630 in words is "eleven billion, five hundred twenty-five million, five hundred twenty thousand, six hundred thirty".