53444423 has 2 divisors, whose sum is σ = 53444424. Its totient is φ = 53444422.

The previous prime is 53444407. The next prime is 53444459. The reversal of 53444423 is 32444435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53444423 - 2⁴ = 53444407 is a prime.

It is equal to p_3195047 and since 53444423 and 3195047 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53444483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26722211 + 26722212.

It is an arithmetic number, because the mean of its divisors is an integer number (26722212).

Almost surely, 2^53444423 is an apocalyptic number.

53444423 is a deficient number, since it is larger than the sum of its proper divisors (1).

53444423 is an equidigital number, since it uses as much as digits as its factorization.

53444423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 29.

The square root of 53444423 is about 7310.5692664799. The cubic root of 53444423 is about 376.6755787521.

Adding to 53444423 its reverse (32444435), we get a palindrome (85888858).

The spelling of 53444423 in words is "fifty-three million, four hundred forty-four thousand, four hundred twenty-three".