425442451 has 16 divisors (see below), whose sum is σ = 504576000. Its totient is φ = 358467144.

The previous prime is 425442359. The next prime is 425442497. The reversal of 425442451 is 154244524.

It is not a de Polignac number, because 425442451 - 2¹¹ = 425440403 is a prime.

It is a super-2 number, since 2×425442451² = 362002558225774802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425442751) 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 15 ways as a sum of consecutive naturals, for example, 9726 + ... + 30748.

It is an arithmetic number, because the mean of its divisors is an integer number (31536000).

Almost surely, 2^425442451 is an apocalyptic number.

425442451 is a deficient number, since it is larger than the sum of its proper divisors (79133549).

425442451 is an equidigital number, since it uses as much as digits as its factorization.

425442451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21103 (or 21089 counting only the distinct ones).

The product of its digits is 25600, while the sum is 31.

The square root of 425442451 is about 20626.2563496142. The cubic root of 425442451 is about 752.1081139592.

Adding to 425442451 its reverse (154244524), we get a palindrome (579686975).

The spelling of 425442451 in words is "four hundred twenty-five million, four hundred forty-two thousand, four hundred fifty-one".