534445421553 has 12 divisors (see below), whose sum is σ = 772079242948. Its totient is φ = 356249629440.

The previous prime is 534445421539. The next prime is 534445421567. The reversal of 534445421553 is 355124544435.

534445421553 is a `hidden beast` number, since 5 + 3 + 4 + 44 + 54 + 2 + 1 + 553 = 666.

It is an interprime number because it is at equal distance from previous prime (534445421539) and next prime (534445421567).

It can be written as a sum of positive squares in 2 ways, for example, as 427131523809 + 107313897744 = 653553^2 + 327588^2 .

It is a de Polignac number, because none of the positive numbers 2^k-534445421553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 534445421499 and 534445421508.

It is not an unprimeable number, because it can be changed into a prime (534345421553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3871588 + ... + 4007253.

Almost surely, 2^534445421553 is an apocalyptic number.

It is an amenable number.

534445421553 is a deficient number, since it is larger than the sum of its proper divisors (237633821395).

534445421553 is a wasteful number, since it uses less digits than its factorization.

534445421553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7886384 (or 7886381 counting only the distinct ones).

The product of its digits is 2880000, while the sum is 45.

Adding to 534445421553 its reverse (355124544435), we get a palindrome (889569965988).

The spelling of 534445421553 in words is "five hundred thirty-four billion, four hundred forty-five million, four hundred twenty-one thousand, five hundred fifty-three".