52051999 has 2 divisors, whose sum is σ = 52052000. Its totient is φ = 52051998.

The previous prime is 52051997. The next prime is 52052003. The reversal of 52051999 is 99915025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52051999 - 2¹ = 52051997 is a prime.

Together with 52051997, 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 (52051997) 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, 26025999 + 26026000.

It is an arithmetic number, because the mean of its divisors is an integer number (26026000).

Almost surely, 2^52051999 is an apocalyptic number.

52051999 is a deficient number, since it is larger than the sum of its proper divisors (1).

52051999 is an equidigital number, since it uses as much as digits as its factorization.

52051999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 40.

The square root of 52051999 is about 7214.7071319632. The cubic root of 52051999 is about 373.3754888799.

The spelling of 52051999 in words is "fifty-two million, fifty-one thousand, nine hundred ninety-nine".