53809043 has 2 divisors, whose sum is σ = 53809044. Its totient is φ = 53809042.

The previous prime is 53809037. The next prime is 53809061. The reversal of 53809043 is 34090835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53809043 - 2¹⁴ = 53792659 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (53809013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26904521 + 26904522.

It is an arithmetic number, because the mean of its divisors is an integer number (26904522).

Almost surely, 2^53809043 is an apocalyptic number.

53809043 is a deficient number, since it is larger than the sum of its proper divisors (1).

53809043 is an equidigital number, since it uses as much as digits as its factorization.

53809043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 53809043 is about 7335.4647432865. The cubic root of 53809043 is about 377.5302503426.

Adding to 53809043 its reverse (34090835), we get a palindrome (87899878).

The spelling of 53809043 in words is "fifty-three million, eight hundred nine thousand, forty-three".