253341531997 has 2 divisors, whose sum is σ = 253341531998. Its totient is φ = 253341531996.

The previous prime is 253341531977. The next prime is 253341532001. The reversal of 253341531997 is 799135143352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187264773081 + 66076758916 = 432741^2 + 257054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253341531997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253341531977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126670765998 + 126670765999.

It is an arithmetic number, because the mean of its divisors is an integer number (126670765999).

Almost surely, 2^253341531997 is an apocalyptic number.

It is an amenable number.

253341531997 is a deficient number, since it is larger than the sum of its proper divisors (1).

253341531997 is an equidigital number, since it uses as much as digits as its factorization.

253341531997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3061800, while the sum is 52.

The spelling of 253341531997 in words is "two hundred fifty-three billion, three hundred forty-one million, five hundred thirty-one thousand, nine hundred ninety-seven".