425526434221 has 16 divisors (see below), whose sum is σ = 491101015680. Its totient is φ = 361160317440.

The previous prime is 425526434219. The next prime is 425526434227. The reversal of 425526434221 is 122434625524.

It is a cyclic number.

It is not a de Polignac number, because 425526434221 - 2¹ = 425526434219 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 (425526434227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88636 + ... + 926773.

It is an arithmetic number, because the mean of its divisors is an integer number (30693813480).

Almost surely, 2^425526434221 is an apocalyptic number.

It is an amenable number.

425526434221 is a deficient number, since it is larger than the sum of its proper divisors (65574581459).

425526434221 is a wasteful number, since it uses less digits than its factorization.

425526434221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016004.

The product of its digits is 460800, while the sum is 40.

The spelling of 425526434221 in words is "four hundred twenty-five billion, five hundred twenty-six million, four hundred thirty-four thousand, two hundred twenty-one".