425131543 has 4 divisors (see below), whose sum is σ = 425201688. Its totient is φ = 425061400.

The previous prime is 425131541. The next prime is 425131571. The reversal of 425131543 is 345131524.

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 425131543 - 2¹ = 425131541 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 (425131541) 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, 25021 + ... + 38422.

It is an arithmetic number, because the mean of its divisors is an integer number (106300422).

Almost surely, 2^425131543 is an apocalyptic number.

425131543 is a deficient number, since it is larger than the sum of its proper divisors (70145).

425131543 is an equidigital number, since it uses as much as digits as its factorization.

425131543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70144.

The product of its digits is 7200, while the sum is 28.

The square root of 425131543 is about 20618.7182676324. The cubic root of 425131543 is about 751.9248589239.

The spelling of 425131543 in words is "four hundred twenty-five million, one hundred thirty-one thousand, five hundred forty-three".