7550442013 has 2 divisors, whose sum is σ = 7550442014. Its totient is φ = 7550442012.

The previous prime is 7550441971. The next prime is 7550442017. The reversal of 7550442013 is 3102440557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3799859449 + 3750582564 = 61643^2 + 61242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7550442013 is a prime.

It is a super-3 number, since 3×7550442013³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7550442017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3775221006 + 3775221007.

It is an arithmetic number, because the mean of its divisors is an integer number (3775221007).

Almost surely, 2^7550442013 is an apocalyptic number.

It is an amenable number.

7550442013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7550442013 is an equidigital number, since it uses as much as digits as its factorization.

7550442013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 7550442013 is about 86893.2794466868. The cubic root of 7550442013 is about 1961.8123259439.

The spelling of 7550442013 in words is "seven billion, five hundred fifty million, four hundred forty-two thousand, thirteen".