52640421333 has 8 divisors (see below), whose sum is σ = 73238847168. Its totient is φ = 33567804864.

The previous prime is 52640421331. The next prime is 52640421349. The reversal of 52640421333 is 33312404625.

It is a happy number.

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

It is not a de Polignac number, because 52640421333 - 2¹ = 52640421331 is a prime.

It is a super-2 number, since 2×52640421333² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52640421294 and 52640421303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52640421331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381452260 + ... + 381452397.

It is an arithmetic number, because the mean of its divisors is an integer number (9154855896).

Almost surely, 2^52640421333 is an apocalyptic number.

It is an amenable number.

52640421333 is a deficient number, since it is larger than the sum of its proper divisors (20598425835).

52640421333 is a wasteful number, since it uses less digits than its factorization.

52640421333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762904683.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 52640421333 its reverse (33312404625), we get a palindrome (85952825958).

The spelling of 52640421333 in words is "fifty-two billion, six hundred forty million, four hundred twenty-one thousand, three hundred thirty-three".