425652643 has 4 divisors (see below), whose sum is σ = 458395168. Its totient is φ = 392910120.

The previous prime is 425652589. The next prime is 425652653. The reversal of 425652643 is 346256524.

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 425652643 - 2¹³ = 425644451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425652653) 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 3 ways as a sum of consecutive naturals, for example, 16371243 + ... + 16371268.

It is an arithmetic number, because the mean of its divisors is an integer number (114598792).

Almost surely, 2^425652643 is an apocalyptic number.

425652643 is a deficient number, since it is larger than the sum of its proper divisors (32742525).

425652643 is a wasteful number, since it uses less digits than its factorization.

425652643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32742524.

The product of its digits is 172800, while the sum is 37.

The square root of 425652643 is about 20631.3509737002. The cubic root of 425652643 is about 752.2319545091.

The spelling of 425652643 in words is "four hundred twenty-five million, six hundred fifty-two thousand, six hundred forty-three".