65442523 has 2 divisors, whose sum is σ = 65442524. Its totient is φ = 65442522.

The previous prime is 65442497. The next prime is 65442539. The reversal of 65442523 is 32524456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65442523 - 2¹³ = 65434331 is a prime.

It is not a weakly prime, because it can be changed into another prime (65442583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32721261 + 32721262.

It is an arithmetic number, because the mean of its divisors is an integer number (32721262).

Almost surely, 2^65442523 is an apocalyptic number.

65442523 is a deficient number, since it is larger than the sum of its proper divisors (1).

65442523 is an equidigital number, since it uses as much as digits as its factorization.

65442523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 31.

The square root of 65442523 is about 8089.6553078608. The cubic root of 65442523 is about 402.9829558887.

Adding to 65442523 its reverse (32524456), we get a palindrome (97966979).

The spelling of 65442523 in words is "sixty-five million, four hundred forty-two thousand, five hundred twenty-three".