425651 has 4 divisors (see below), whose sum is σ = 432072. Its totient is φ = 419232.

The previous prime is 425641. The next prime is 425653. The reversal of 425651 is 156524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425651 - 2¹⁴ = 409267 is a prime.

It is a d-powerful number, because it can be written as 4⁸ + 2¹¹ + 6⁷ + 5 + 5⁷ + 1 .

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425651.

It is not an unprimeable number, because it can be changed into a prime (425653) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3110 + ... + 3243.

It is an arithmetic number, because the mean of its divisors is an integer number (108018).

2⁴²⁵⁶⁵¹ is an apocalyptic number.

425651 is a deficient number, since it is larger than the sum of its proper divisors (6421).

425651 is an equidigital number, since it uses as much as digits as its factorization.

425651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6420.

The product of its digits is 1200, while the sum is 23.

The square root of 425651 is about 652.4193436740. The cubic root of 425651 is about 75.2230986647.

The spelling of 425651 in words is "four hundred twenty-five thousand, six hundred fifty-one".