426216025 has 9 divisors (see below), whose sum is σ = 528635901. Its totient is φ = 340890240.

The previous prime is 426216017. The next prime is 426216029. The reversal of 426216025 is 520612624.

The square root of 426216025 is 20645.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3337929 + 422878096 = 1827^2 + 20564^2 .

It is not a de Polignac number, because 426216025 - 2³ = 426216017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426215984 and 426216002.

It is not an unprimeable number, because it can be changed into a prime (426216029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 101161 + ... + 105289.

Almost surely, 2^426216025 is an apocalyptic number.

426216025 is the 20645-th square number.

426216025 is the 10323-rd centered octagonal number.

It is an amenable number.

426216025 is a deficient number, since it is larger than the sum of its proper divisors (102419876).

426216025 is an frugal number, since it uses more digits than its factorization.

426216025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8268 (or 4134 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The cubic root of 426216025 is about 752.5636859599.

Adding to 426216025 its reverse (520612624), we get a palindrome (946828649).

The spelling of 426216025 in words is "four hundred twenty-six million, two hundred sixteen thousand, twenty-five".