425255543 has 4 divisors (see below), whose sum is σ = 429157080. Its totient is φ = 421354008.

The previous prime is 425255513. The next prime is 425255569. The reversal of 425255543 is 345552524.

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 425255543 - 2¹⁴ = 425239159 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 (425255503) 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, 1950605 + ... + 1950822.

It is an arithmetic number, because the mean of its divisors is an integer number (107289270).

Almost surely, 2^425255543 is an apocalyptic number.

425255543 is a deficient number, since it is larger than the sum of its proper divisors (3901537).

425255543 is a wasteful number, since it uses less digits than its factorization.

425255543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901536.

The product of its digits is 120000, while the sum is 35.

The square root of 425255543 is about 20621.7250248373. The cubic root of 425255543 is about 751.9979575686.

It can be divided in two parts, 4252 and 55543, that added together give a palindrome (59795).

The spelling of 425255543 in words is "four hundred twenty-five million, two hundred fifty-five thousand, five hundred forty-three".