11072521525 has 48 divisors (see below), whose sum is σ = 15002946000. Its totient is φ = 8057640960.

The previous prime is 11072521519. The next prime is 11072521531. The reversal of 11072521525 is 52512527011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11072521519) and next prime (11072521531).

It can be written as a sum of positive squares in 24 ways, for example, as 10162051249 + 910470276 = 100807^2 + 30174^2 .

It is not a de Polignac number, because 11072521525 - 2⁹ = 11072521013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6633391 + ... + 6635059.

It is an arithmetic number, because the mean of its divisors is an integer number (312561375).

Almost surely, 2^11072521525 is an apocalyptic number.

It is an amenable number.

11072521525 is a deficient number, since it is larger than the sum of its proper divisors (3930424475).

11072521525 is a wasteful number, since it uses less digits than its factorization.

11072521525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978 (or 1973 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 31.

The spelling of 11072521525 in words is "eleven billion, seventy-two million, five hundred twenty-one thousand, five hundred twenty-five".