7552515491 has 2 divisors, whose sum is σ = 7552515492. Its totient is φ = 7552515490.

The previous prime is 7552515473. The next prime is 7552515653. The reversal of 7552515491 is 1945152557.

It is a weak prime.

It is an emirp because it is prime and its reverse (1945152557) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7552515491 is a prime.

It is not a weakly prime, because it can be changed into another prime (7552515431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3776257745 + 3776257746.

It is an arithmetic number, because the mean of its divisors is an integer number (3776257746).

Almost surely, 2^7552515491 is an apocalyptic number.

7552515491 is a deficient number, since it is larger than the sum of its proper divisors (1).

7552515491 is an equidigital number, since it uses as much as digits as its factorization.

7552515491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 315000, while the sum is 44.

The square root of 7552515491 is about 86905.2098035555. The cubic root of 7552515491 is about 1961.9918916960.

The spelling of 7552515491 in words is "seven billion, five hundred fifty-two million, five hundred fifteen thousand, four hundred ninety-one".