52278635321 has 8 divisors (see below), whose sum is σ = 58870956288. Its totient is φ = 45992934000.

The previous prime is 52278635287. The next prime is 52278635329. The reversal of 52278635321 is 12353687225.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52278635321 - 2⁶ = 52278635257 is a prime.

It is a super-2 number, since 2×52278635321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52278635329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76654550 + ... + 76655231.

It is an arithmetic number, because the mean of its divisors is an integer number (7358869536).

Almost surely, 2^52278635321 is an apocalyptic number.

It is an amenable number.

52278635321 is a deficient number, since it is larger than the sum of its proper divisors (6592320967).

52278635321 is a wasteful number, since it uses less digits than its factorization.

52278635321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153309823.

The product of its digits is 604800, while the sum is 44.

The spelling of 52278635321 in words is "fifty-two billion, two hundred seventy-eight million, six hundred thirty-five thousand, three hundred twenty-one".