11012404525 has 6 divisors (see below), whose sum is σ = 13655381642. Its totient is φ = 8809923600.

The previous prime is 11012404489. The next prime is 11012404573. The reversal of 11012404525 is 52540421011.

11012404525 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 1135622601 + 9876781924 = 33699^2 + 99382^2 .

It is not a de Polignac number, because 11012404525 - 2²⁵ = 10978850093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 440496181 = 11012404525 / (1 + 1 + 0 + 1 + 2 + 4 + 0 + 4 + 5 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11012404525.

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 5 ways as a sum of consecutive naturals, for example, 220248066 + ... + 220248115.

Almost surely, 2^11012404525 is an apocalyptic number.

It is an amenable number.

11012404525 is a deficient number, since it is larger than the sum of its proper divisors (2642977117).

11012404525 is an equidigital number, since it uses as much as digits as its factorization.

11012404525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440496191 (or 440496186 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 11012404525 its reverse (52540421011), we get a palindrome (63552825536).

The spelling of 11012404525 in words is "eleven billion, twelve million, four hundred four thousand, five hundred twenty-five".