7550921755507 has 16 divisors (see below), whose sum is σ = 8690569084512. Its totient is φ = 6498767669760.

The previous prime is 7550921755469. The next prime is 7550921755513. The reversal of 7550921755507 is 7055571290557.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7550921755507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7550921755537) 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, 159635544 + ... + 159682837.

It is an arithmetic number, because the mean of its divisors is an integer number (543160567782).

Almost surely, 2^{7550921755507} is an apocalyptic number.

7550921755507 is a deficient number, since it is larger than the sum of its proper divisors (1139647329005).

7550921755507 is a wasteful number, since it uses less digits than its factorization.

7550921755507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319318518.

The product of its (nonzero) digits is 19293750, while the sum is 58.

The spelling of 7550921755507 in words is "seven trillion, five hundred fifty billion, nine hundred twenty-one million, seven hundred fifty-five thousand, five hundred seven".