7557232117 has 2 divisors, whose sum is σ = 7557232118. Its totient is φ = 7557232116.

The previous prime is 7557232097. The next prime is 7557232183. The reversal of 7557232117 is 7112327557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7508915716 + 48316401 = 86654^2 + 6951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7557232117 is a prime.

It is a super-2 number, since 2×7557232117² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7557232117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7557232187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3778616058 + 3778616059.

It is an arithmetic number, because the mean of its divisors is an integer number (3778616059).

Almost surely, 2^7557232117 is an apocalyptic number.

It is an amenable number.

7557232117 is a deficient number, since it is larger than the sum of its proper divisors (1).

7557232117 is an equidigital number, since it uses as much as digits as its factorization.

7557232117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102900, while the sum is 40.

The square root of 7557232117 is about 86932.3421805717. The cubic root of 7557232117 is about 1962.4002349490.

The spelling of 7557232117 in words is "seven billion, five hundred fifty-seven million, two hundred thirty-two thousand, one hundred seventeen".