5312251993 has 2 divisors, whose sum is σ = 5312251994. Its totient is φ = 5312251992.

The previous prime is 5312251951. The next prime is 5312252041. The reversal of 5312251993 is 3991522135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3711611929 + 1600640064 = 60923^2 + 40008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5312251993 is a prime.

It is not a weakly prime, because it can be changed into another prime (5312251913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2656125996 + 2656125997.

It is an arithmetic number, because the mean of its divisors is an integer number (2656125997).

Almost surely, 2^5312251993 is an apocalyptic number.

It is an amenable number.

5312251993 is a deficient number, since it is larger than the sum of its proper divisors (1).

5312251993 is an equidigital number, since it uses as much as digits as its factorization.

5312251993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 40.

The square root of 5312251993 is about 72885.1973517257. The cubic root of 5312251993 is about 1744.8558587901.

The spelling of 5312251993 in words is "five billion, three hundred twelve million, two hundred fifty-one thousand, nine hundred ninety-three".