351253253305 has 4 divisors (see below), whose sum is σ = 421503903972. Its totient is φ = 281002602640.

The previous prime is 351253253257. The next prime is 351253253353. The reversal of 351253253305 is 503352352153.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (351253253257) and next prime (351253253353).

It can be written as a sum of positive squares in 2 ways, for example, as 128873102121 + 222380151184 = 358989^2 + 471572^2 .

It is not a de Polignac number, because 351253253305 - 2⁹ = 351253252793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35125325326 + ... + 35125325335.

It is an arithmetic number, because the mean of its divisors is an integer number (105375975993).

Almost surely, 2^351253253305 is an apocalyptic number.

It is an amenable number.

351253253305 is a deficient number, since it is larger than the sum of its proper divisors (70250650667).

351253253305 is an equidigital number, since it uses as much as digits as its factorization.

351253253305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70250650666.

The product of its (nonzero) digits is 202500, while the sum is 37.

The spelling of 351253253305 in words is "three hundred fifty-one billion, two hundred fifty-three million, two hundred fifty-three thousand, three hundred five".