395493250253 has 2 divisors, whose sum is σ = 395493250254. Its totient is φ = 395493250252.

The previous prime is 395493250249. The next prime is 395493250267. The reversal of 395493250253 is 352052394593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357887508169 + 37605742084 = 598237^2 + 193922^2 .

It is a cyclic number.

It is not a de Polignac number, because 395493250253 - 2² = 395493250249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395493150253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197746625126 + 197746625127.

It is an arithmetic number, because the mean of its divisors is an integer number (197746625127).

Almost surely, 2^395493250253 is an apocalyptic number.

It is an amenable number.

395493250253 is a deficient number, since it is larger than the sum of its proper divisors (1).

395493250253 is an equidigital number, since it uses as much as digits as its factorization.

395493250253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374000, while the sum is 50.

The spelling of 395493250253 in words is "three hundred ninety-five billion, four hundred ninety-three million, two hundred fifty thousand, two hundred fifty-three".