331422025 has 27 divisors (see below), whose sum is σ = 453088839. Its totient is φ = 240306000.

The previous prime is 331422011. The next prime is 331422029. The reversal of 331422025 is 520224133.

The square root of 331422025 is 18205.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 119311929 + 212110096 = 10923^2 + 14564^2 .

It is not a de Polignac number, because 331422025 - 2¹⁹ = 330897737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331421987 and 331422005.

It is not an unprimeable number, because it can be changed into a prime (331422029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1001110 + ... + 1001440.

Almost surely, 2^331422025 is an apocalyptic number.

331422025 is the 18205-th square number.

331422025 is the 9103-rd centered octagonal number.

It is an amenable number.

331422025 is a deficient number, since it is larger than the sum of its proper divisors (121666814).

331422025 is an equidigital number, since it uses as much as digits as its factorization.

331422025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The cubic root of 331422025 is about 692.0335061516.

Adding to 331422025 its reverse (520224133), we get a palindrome (851646158).

The spelling of 331422025 in words is "three hundred thirty-one million, four hundred twenty-two thousand, twenty-five".