11125549755 has 24 divisors (see below), whose sum is σ = 19297689840. Its totient is φ = 5929502400.

The previous prime is 11125549739. The next prime is 11125549759. The reversal of 11125549755 is 55794552111.

11125549755 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 554 + 97 + 5 + 5 = 666.

It is not a de Polignac number, because 11125549755 - 2⁴ = 11125549739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11125549755.

It is not an unprimeable number, because it can be changed into a prime (11125549759) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19900 + ... + 150489.

It is an arithmetic number, because the mean of its divisors is an integer number (804070410).

Almost surely, 2^11125549755 is an apocalyptic number.

11125549755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11125549755 is a deficient number, since it is larger than the sum of its proper divisors (8172140085).

11125549755 is a wasteful number, since it uses less digits than its factorization.

11125549755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171851 (or 171848 counting only the distinct ones).

The product of its digits is 315000, while the sum is 45.

The spelling of 11125549755 in words is "eleven billion, one hundred twenty-five million, five hundred forty-nine thousand, seven hundred fifty-five".