11507257236550 has 24 divisors (see below), whose sum is σ = 21406751389152. Its totient is φ = 4602203340000.

The previous prime is 11507257236523. The next prime is 11507257236557. The reversal of 11507257236550 is 5563275270511.

It is a junction number, because it is equal to n+sod(n) for n = 11507257236494 and 11507257236503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11507257236557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17156526 + ... + 17814625.

It is an arithmetic number, because the mean of its divisors is an integer number (891947974548).

Almost surely, 2^{11507257236550} is an apocalyptic number.

11507257236550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11507257236550 is a deficient number, since it is larger than the sum of its proper divisors (9899494152602).

11507257236550 is a wasteful number, since it uses less digits than its factorization.

11507257236550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34977744 (or 34977739 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 49.

The spelling of 11507257236550 in words is "eleven trillion, five hundred seven billion, two hundred fifty-seven million, two hundred thirty-six thousand, five hundred fifty".