52421911 has 2 divisors, whose sum is σ = 52421912. Its totient is φ = 52421910.

The previous prime is 52421909. The next prime is 52421959. The reversal of 52421911 is 11912425.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52421911 - 2¹ = 52421909 is a prime.

Together with 52421909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52421981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26210955 + 26210956.

It is an arithmetic number, because the mean of its divisors is an integer number (26210956).

Almost surely, 2^52421911 is an apocalyptic number.

52421911 is a deficient number, since it is larger than the sum of its proper divisors (1).

52421911 is an equidigital number, since it uses as much as digits as its factorization.

52421911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 25.

The square root of 52421911 is about 7240.2977148733. The cubic root of 52421911 is about 374.2578769036.

The spelling of 52421911 in words is "fifty-two million, four hundred twenty-one thousand, nine hundred eleven".