350225521 has 2 divisors, whose sum is σ = 350225522. Its totient is φ = 350225520.

The previous prime is 350225509. The next prime is 350225539. The reversal of 350225521 is 125522053.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287641600 + 62583921 = 16960^2 + 7911^2 .

It is a cyclic number.

It is not a de Polignac number, because 350225521 - 2¹¹ = 350223473 is a prime.

It is not a weakly prime, because it can be changed into another prime (350225921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175112760 + 175112761.

It is an arithmetic number, because the mean of its divisors is an integer number (175112761).

Almost surely, 2^350225521 is an apocalyptic number.

It is an amenable number.

350225521 is a deficient number, since it is larger than the sum of its proper divisors (1).

350225521 is an equidigital number, since it uses as much as digits as its factorization.

350225521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 350225521 is about 18714.3132655195. The cubic root of 350225521 is about 704.8812039326.

Adding to 350225521 its reverse (125522053), we get a palindrome (475747574).

The spelling of 350225521 in words is "three hundred fifty million, two hundred twenty-five thousand, five hundred twenty-one".