11552555505 has 32 divisors (see below), whose sum is σ = 18820243584. Its totient is φ = 6050059776.

The previous prime is 11552555489. The next prime is 11552555519. The reversal of 11552555505 is 50555525511.

It is not a de Polignac number, because 11552555505 - 2⁴ = 11552555489 is a prime.

It is a super-2 number, since 2×11552555505² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225327 + ... + 271803.

It is an arithmetic number, because the mean of its divisors is an integer number (588132612).

Almost surely, 2^11552555505 is an apocalyptic number.

11552555505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11552555505 is a deficient number, since it is larger than the sum of its proper divisors (7267688079).

11552555505 is a wasteful number, since it uses less digits than its factorization.

11552555505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46785.

The product of its (nonzero) digits is 156250, while the sum is 39.

The spelling of 11552555505 in words is "eleven billion, five hundred fifty-two million, five hundred fifty-five thousand, five hundred five".