7550550557 has 16 divisors (see below), whose sum is σ = 8700426240. Its totient is φ = 6488218800.

The previous prime is 7550550481. The next prime is 7550550571.

7550550557 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 7550550557 - 2¹⁶ = 7550485021 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7550550157) 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, 242807 + ... + 272132.

It is an arithmetic number, because the mean of its divisors is an integer number (543776640).

Almost surely, 2^7550550557 is an apocalyptic number.

It is an amenable number.

7550550557 is a deficient number, since it is larger than the sum of its proper divisors (1149875683).

7550550557 is a wasteful number, since it uses less digits than its factorization.

7550550557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515024.

The product of its (nonzero) digits is 765625, while the sum is 44.

The square root of 7550550557 is about 86893.9040266922. The cubic root of 7550550557 is about 1961.8217268036.

The spelling of 7550550557 in words is "seven billion, five hundred fifty million, five hundred fifty thousand, five hundred fifty-seven".