52452391 has 2 divisors, whose sum is σ = 52452392. Its totient is φ = 52452390.

The previous prime is 52452353. The next prime is 52452401. The reversal of 52452391 is 19325425.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52452391 - 2⁷ = 52452263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52452311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26226195 + 26226196.

It is an arithmetic number, because the mean of its divisors is an integer number (26226196).

Almost surely, 2^52452391 is an apocalyptic number.

52452391 is a deficient number, since it is larger than the sum of its proper divisors (1).

52452391 is an equidigital number, since it uses as much as digits as its factorization.

52452391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 31.

The square root of 52452391 is about 7242.4022948190. The cubic root of 52452391 is about 374.3303985502.

The spelling of 52452391 in words is "fifty-two million, four hundred fifty-two thousand, three hundred ninety-one".