331422625 has 16 divisors (see below), whose sum is σ = 414507600. Its totient is φ = 264566400.

The previous prime is 331422613. The next prime is 331422631. The reversal of 331422625 is 526224133.

It can be written as a sum of positive squares in 8 ways, for example, as 4210704 + 327211921 = 2052^2 + 18089^2 .

It is not a de Polignac number, because 331422625 - 2⁵ = 331422593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331422593 and 331422602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61021 + ... + 66229.

It is an arithmetic number, because the mean of its divisors is an integer number (25906725).

Almost surely, 2^331422625 is an apocalyptic number.

It is an amenable number.

331422625 is a deficient number, since it is larger than the sum of its proper divisors (83084975).

331422625 is an equidigital number, since it uses as much as digits as its factorization.

331422625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5733 (or 5723 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 331422625 is about 18205.0164789818. The cubic root of 331422625 is about 692.0339237660.

Adding to 331422625 its reverse (526224133), we get a palindrome (857646758).

It can be divided in two parts, 3 and 31422625, that added together give a triangular number (31422628 = T₇₉₂₇).

The spelling of 331422625 in words is "three hundred thirty-one million, four hundred twenty-two thousand, six hundred twenty-five".