52578143 has 2 divisors, whose sum is σ = 52578144. Its totient is φ = 52578142.

The previous prime is 52578137. The next prime is 52578193. The reversal of 52578143 is 34187525.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52578143 - 2¹⁴ = 52561759 is a prime.

It is a super-2 number, since 2×52578143² = 5528922242656898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52578193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26289071 + 26289072.

It is an arithmetic number, because the mean of its divisors is an integer number (26289072).

Almost surely, 2^52578143 is an apocalyptic number.

52578143 is a deficient number, since it is larger than the sum of its proper divisors (1).

52578143 is an equidigital number, since it uses as much as digits as its factorization.

52578143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The square root of 52578143 is about 7251.0787473313. The cubic root of 52578143 is about 374.6293059796.

The spelling of 52578143 in words is "fifty-two million, five hundred seventy-eight thousand, one hundred forty-three".