52199387 has 2 divisors, whose sum is σ = 52199388. Its totient is φ = 52199386.

The previous prime is 52199363. The next prime is 52199417. The reversal of 52199387 is 78399125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52199387 - 2⁸ = 52199131 is a prime.

It is not a weakly prime, because it can be changed into another prime (52199687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26099693 + 26099694.

It is an arithmetic number, because the mean of its divisors is an integer number (26099694).

Almost surely, 2^52199387 is an apocalyptic number.

52199387 is a deficient number, since it is larger than the sum of its proper divisors (1).

52199387 is an equidigital number, since it uses as much as digits as its factorization.

52199387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 52199387 is about 7224.9143247515. The cubic root of 52199387 is about 373.7275676219.

The spelling of 52199387 in words is "fifty-two million, one hundred ninety-nine thousand, three hundred eighty-seven".