425443541 has 4 divisors (see below), whose sum is σ = 425488812. Its totient is φ = 425398272.

The previous prime is 425443517. The next prime is 425443549. The reversal of 425443541 is 145344524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 249324100 + 176119441 = 15790^2 + 13271^2 .

It is a cyclic number.

It is not a de Polignac number, because 425443541 - 2⁶ = 425443477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425443498 and 425443507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425443549) 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, 2666 + ... + 29291.

It is an arithmetic number, because the mean of its divisors is an integer number (106372203).

Almost surely, 2^425443541 is an apocalyptic number.

It is an amenable number.

425443541 is a deficient number, since it is larger than the sum of its proper divisors (45271).

425443541 is a wasteful number, since it uses less digits than its factorization.

425443541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45270.

The product of its digits is 38400, while the sum is 32.

The square root of 425443541 is about 20626.2827722302. The cubic root of 425443541 is about 752.1087562687.

The spelling of 425443541 in words is "four hundred twenty-five million, four hundred forty-three thousand, five hundred forty-one".