534251225421 has 20 divisors (see below), whose sum is σ = 825598959900. Its totient is φ = 343885844736.

The previous prime is 534251225351. The next prime is 534251225461. The reversal of 534251225421 is 124522152435.

534251225421 is a `hidden beast` number, since 5 + 3 + 4 + 2 + 5 + 1 + 225 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 456184071396 + 78067154025 = 675414^2 + 279405^2 .

It is a de Polignac number, because none of the positive numbers 2^k-534251225421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534251225461) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 113716516 + ... + 113721213.

It is an arithmetic number, because the mean of its divisors is an integer number (41279947995).

Almost surely, 2^534251225421 is an apocalyptic number.

It is an amenable number.

534251225421 is a deficient number, since it is larger than the sum of its proper divisors (291347734479).

534251225421 is a wasteful number, since it uses less digits than its factorization.

534251225421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227437770 (or 227437761 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 534251225421 its reverse (124522152435), we get a palindrome (658773377856).

The spelling of 534251225421 in words is "five hundred thirty-four billion, two hundred fifty-one million, two hundred twenty-five thousand, four hundred twenty-one".