52140293 has 2 divisors, whose sum is σ = 52140294. Its totient is φ = 52140292.

The previous prime is 52140211. The next prime is 52140317. The reversal of 52140293 is 39204125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44649124 + 7491169 = 6682^2 + 2737^2 .

It is a cyclic number.

It is not a de Polignac number, because 52140293 - 2¹² = 52136197 is a prime.

It is a super-2 number, since 2×52140293² = 5437220308251698, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52040293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26070146 + 26070147.

It is an arithmetic number, because the mean of its divisors is an integer number (26070147).

Almost surely, 2^52140293 is an apocalyptic number.

It is an amenable number.

52140293 is a deficient number, since it is larger than the sum of its proper divisors (1).

52140293 is an equidigital number, since it uses as much as digits as its factorization.

52140293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 52140293 is about 7220.8235679872. The cubic root of 52140293 is about 373.5864842527.

The spelling of 52140293 in words is "fifty-two million, one hundred forty thousand, two hundred ninety-three".