253203161597 has 2 divisors, whose sum is σ = 253203161598. Its totient is φ = 253203161596.

The previous prime is 253203161539. The next prime is 253203161639. The reversal of 253203161597 is 795161302352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195849617401 + 57353544196 = 442549^2 + 239486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253203161597 is a prime.

It is a super-2 number, since 2×253203161597² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253203161537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126601580798 + 126601580799.

It is an arithmetic number, because the mean of its divisors is an integer number (126601580799).

Almost surely, 2^253203161597 is an apocalyptic number.

It is an amenable number.

253203161597 is a deficient number, since it is larger than the sum of its proper divisors (1).

253203161597 is an equidigital number, since it uses as much as digits as its factorization.

253203161597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 44.

The spelling of 253203161597 in words is "two hundred fifty-three billion, two hundred three million, one hundred sixty-one thousand, five hundred ninety-seven".