425520221311 has 8 divisors (see below), whose sum is σ = 428152276944. Its totient is φ = 422896277760.

The previous prime is 425520221279. The next prime is 425520221341. The reversal of 425520221311 is 113122025524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425520221311 - 2⁵ = 425520221279 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 425520221311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425520221341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1922770 + ... + 2132623.

It is an arithmetic number, because the mean of its divisors is an integer number (53519034618).

Almost surely, 2^425520221311 is an apocalyptic number.

425520221311 is a deficient number, since it is larger than the sum of its proper divisors (2632055633).

425520221311 is a wasteful number, since it uses less digits than its factorization.

425520221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056041.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 425520221311 its reverse (113122025524), we get a palindrome (538642246835).

The spelling of 425520221311 in words is "four hundred twenty-five billion, five hundred twenty million, two hundred twenty-one thousand, three hundred eleven".