425662543 has 4 divisors (see below), whose sum is σ = 425958160. Its totient is φ = 425366928.

The previous prime is 425662511. The next prime is 425662571. The reversal of 425662543 is 345266524.

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 425662543 - 2⁵ = 425662511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425662843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145638 + ... + 148531.

It is an arithmetic number, because the mean of its divisors is an integer number (106489540).

Almost surely, 2^425662543 is an apocalyptic number.

425662543 is a deficient number, since it is larger than the sum of its proper divisors (295617).

425662543 is a wasteful number, since it uses less digits than its factorization.

425662543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295616.

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

The square root of 425662543 is about 20631.5908984256. The cubic root of 425662543 is about 752.2377863681.

The spelling of 425662543 in words is "four hundred twenty-five million, six hundred sixty-two thousand, five hundred forty-three".