52146869 has 2 divisors, whose sum is σ = 52146870. Its totient is φ = 52146868.

The previous prime is 52146847. The next prime is 52146877. The reversal of 52146869 is 96864125.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27772900 + 24373969 = 5270^2 + 4937^2 .

It is a cyclic number.

It is not a de Polignac number, because 52146869 - 2¹² = 52142773 is a prime.

It is a super-2 number, since 2×52146869² = 5438591893006322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52146169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26073434 + 26073435.

It is an arithmetic number, because the mean of its divisors is an integer number (26073435).

Almost surely, 2^52146869 is an apocalyptic number.

It is an amenable number.

52146869 is a deficient number, since it is larger than the sum of its proper divisors (1).

52146869 is an equidigital number, since it uses as much as digits as its factorization.

52146869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 52146869 is about 7221.2789033522. The cubic root of 52146869 is about 373.6021893265.

The spelling of 52146869 in words is "fifty-two million, one hundred forty-six thousand, eight hundred sixty-nine".