53809061 has 2 divisors, whose sum is σ = 53809062. Its totient is φ = 53809060.

The previous prime is 53809043. The next prime is 53809109. The reversal of 53809061 is 16090835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37761025 + 16048036 = 6145^2 + 4006^2 .

It is a cyclic number.

It is not a de Polignac number, because 53809061 - 2¹⁰ = 53808037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53809661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26904530 + 26904531.

It is an arithmetic number, because the mean of its divisors is an integer number (26904531).

Almost surely, 2^53809061 is an apocalyptic number.

It is an amenable number.

53809061 is a deficient number, since it is larger than the sum of its proper divisors (1).

53809061 is an equidigital number, since it uses as much as digits as its factorization.

53809061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 53809061 is about 7335.4659702026. The cubic root of 53809061 is about 377.5302924392.

Adding to 53809061 its reverse (16090835), we get a palindrome (69899896).

It can be divided in two parts, 5380 and 9061, that added together give a palindrome (14441).

The spelling of 53809061 in words is "fifty-three million, eight hundred nine thousand, sixty-one".