11552504535 has 144 divisors (see below), whose sum is σ = 23808346848. Its totient is φ = 5136768000.

The previous prime is 11552504531. The next prime is 11552504539. The reversal of 11552504535 is 53540525511.

11552504535 is a `hidden beast` number, since 1 + 1 + 552 + 50 + 4 + 53 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (11552504531) and next prime (11552504539).

It is not a de Polignac number, because 11552504535 - 2² = 11552504531 is a prime.

It is a super-2 number, since 2×11552504535² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11552504535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11552504531) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 16479685 + ... + 16480385.

It is an arithmetic number, because the mean of its divisors is an integer number (165335742).

Almost surely, 2^11552504535 is an apocalyptic number.

11552504535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11552504535 is an abundant number, since it is smaller than the sum of its proper divisors (12255842313).

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

11552504535 is a wasteful number, since it uses less digits than its factorization.

11552504535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 11552504535 in words is "eleven billion, five hundred fifty-two million, five hundred four thousand, five hundred thirty-five".