11137057550 has 48 divisors (see below), whose sum is σ = 21418910352. Its totient is φ = 4305465600.

The previous prime is 11137057517. The next prime is 11137057573. The reversal of 11137057550 is 5575073111.

It is a self number, because there is not a number n which added to its sum of digits gives 11137057550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193964 + ... + 244736.

It is an arithmetic number, because the mean of its divisors is an integer number (446227299).

Almost surely, 2^11137057550 is an apocalyptic number.

11137057550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11137057550 is a deficient number, since it is larger than the sum of its proper divisors (10281852802).

11137057550 is a wasteful number, since it uses less digits than its factorization.

11137057550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50933 (or 50928 counting only the distinct ones).

The product of its (nonzero) digits is 18375, while the sum is 35.

The spelling of 11137057550 in words is "eleven billion, one hundred thirty-seven million, fifty-seven thousand, five hundred fifty".