11247055557 has 16 divisors (see below), whose sum is σ = 15045219840. Its totient is φ = 7473503232.

The previous prime is 11247055511. The next prime is 11247055559. The reversal of 11247055557 is 75555074211.

It is not a de Polignac number, because 11247055557 - 2⁶ = 11247055493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11247055559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1342293 + ... + 1350645.

It is an arithmetic number, because the mean of its divisors is an integer number (940326240).

Almost surely, 2^11247055557 is an apocalyptic number.

It is an amenable number.

11247055557 is a deficient number, since it is larger than the sum of its proper divisors (3798164283).

11247055557 is an equidigital number, since it uses as much as digits as its factorization.

11247055557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9772.

The product of its (nonzero) digits is 245000, while the sum is 42.

The spelling of 11247055557 in words is "eleven billion, two hundred forty-seven million, fifty-five thousand, five hundred fifty-seven".