533240320551 has 16 divisors (see below), whose sum is σ = 750143946240. Its totient is φ = 336001944960.

The previous prime is 533240320537. The next prime is 533240320579. The reversal of 533240320551 is 155023042335.

It is not a de Polignac number, because 533240320551 - 2⁷ = 533240320423 is a prime.

It is a super-2 number, since 2×533240320551² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533240320531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10828210 + ... + 10877343.

It is an arithmetic number, because the mean of its divisors is an integer number (46883996640).

Almost surely, 2^533240320551 is an apocalyptic number.

533240320551 is a deficient number, since it is larger than the sum of its proper divisors (216903625689).

533240320551 is a wasteful number, since it uses less digits than its factorization.

533240320551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21706006.

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 533240320551 its reverse (155023042335), we get a palindrome (688263362886).

The spelling of 533240320551 in words is "five hundred thirty-three billion, two hundred forty million, three hundred twenty thousand, five hundred fifty-one".