7430090557 has 2 divisors, whose sum is σ = 7430090558. Its totient is φ = 7430090556.

The previous prime is 7430090531. The next prime is 7430090611. The reversal of 7430090557 is 7550900347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4919479321 + 2510611236 = 70139^2 + 50106^2 .

It is a cyclic number.

It is not a de Polignac number, because 7430090557 - 2¹¹ = 7430088509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7430094557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3715045278 + 3715045279.

It is an arithmetic number, because the mean of its divisors is an integer number (3715045279).

Almost surely, 2^7430090557 is an apocalyptic number.

It is an amenable number.

7430090557 is a deficient number, since it is larger than the sum of its proper divisors (1).

7430090557 is an equidigital number, since it uses as much as digits as its factorization.

7430090557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 7430090557 is about 86197.9730446140. The cubic root of 7430090557 is about 1951.3329091605.

The spelling of 7430090557 in words is "seven billion, four hundred thirty million, ninety thousand, five hundred fifty-seven".