52147399 has 2 divisors, whose sum is σ = 52147400. Its totient is φ = 52147398.

The previous prime is 52147369. The next prime is 52147427. The reversal of 52147399 is 99374125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52147399 - 2¹³ = 52139207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52147349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26073699 + 26073700.

It is an arithmetic number, because the mean of its divisors is an integer number (26073700).

Almost surely, 2^52147399 is an apocalyptic number.

52147399 is a deficient number, since it is larger than the sum of its proper divisors (1).

52147399 is an equidigital number, since it uses as much as digits as its factorization.

52147399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 52147399 is about 7221.3156003598. The cubic root of 52147399 is about 373.6034550369.

The spelling of 52147399 in words is "fifty-two million, one hundred forty-seven thousand, three hundred ninety-nine".