351125257 has 4 divisors (see below), whose sum is σ = 401286016. Its totient is φ = 300964500.

The previous prime is 351125237. The next prime is 351125267. The reversal of 351125257 is 752521153.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 351125257 - 2¹¹ = 351123209 is a prime.

It is a super-2 number, since 2×351125257² = 246577892206632098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351125237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25080369 + ... + 25080382.

It is an arithmetic number, because the mean of its divisors is an integer number (100321504).

Almost surely, 2^351125257 is an apocalyptic number.

It is an amenable number.

351125257 is a deficient number, since it is larger than the sum of its proper divisors (50160759).

351125257 is an equidigital number, since it uses as much as digits as its factorization.

351125257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50160758.

The product of its digits is 10500, while the sum is 31.

The square root of 351125257 is about 18738.3365590439. The cubic root of 351125257 is about 705.4843054906.

The spelling of 351125257 in words is "three hundred fifty-one million, one hundred twenty-five thousand, two hundred fifty-seven".