52221630427 has 2 divisors, whose sum is σ = 52221630428. Its totient is φ = 52221630426.

The previous prime is 52221630407. The next prime is 52221630449. The reversal of 52221630427 is 72403612225.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52221630427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52221630392 and 52221630401.

It is not a weakly prime, because it can be changed into another prime (52221630407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26110815213 + 26110815214.

It is an arithmetic number, because the mean of its divisors is an integer number (26110815214).

Almost surely, 2^52221630427 is an apocalyptic number.

52221630427 is a deficient number, since it is larger than the sum of its proper divisors (1).

52221630427 is an equidigital number, since it uses as much as digits as its factorization.

52221630427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 52221630427 in words is "fifty-two billion, two hundred twenty-one million, six hundred thirty thousand, four hundred twenty-seven".