425530263 has 4 divisors (see below), whose sum is σ = 567373688. Its totient is φ = 283686840.

The previous prime is 425530249. The next prime is 425530283. The reversal of 425530263 is 362035524.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 425530263 - 2¹⁰ = 425529239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425530263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425530283) 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, 70921708 + ... + 70921713.

It is an arithmetic number, because the mean of its divisors is an integer number (141843422).

Almost surely, 2^425530263 is an apocalyptic number.

425530263 is a deficient number, since it is larger than the sum of its proper divisors (141843425).

425530263 is a wasteful number, since it uses less digits than its factorization.

425530263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141843424.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 425530263 is about 20628.3848858799. The cubic root of 425530263 is about 752.1598558374.

Adding to 425530263 its reverse (362035524), we get a palindrome (787565787).

The spelling of 425530263 in words is "four hundred twenty-five million, five hundred thirty thousand, two hundred sixty-three".