53503823 has 2 divisors, whose sum is σ = 53503824. Its totient is φ = 53503822.

The previous prime is 53503763. The next prime is 53503837. The reversal of 53503823 is 32830535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53503823 - 2¹⁴ = 53487439 is a prime.

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 (53503123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26751911 + 26751912.

It is an arithmetic number, because the mean of its divisors is an integer number (26751912).

Almost surely, 2^53503823 is an apocalyptic number.

53503823 is a deficient number, since it is larger than the sum of its proper divisors (1).

53503823 is an equidigital number, since it uses as much as digits as its factorization.

53503823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 53503823 is about 7314.6307493954. The cubic root of 53503823 is about 376.8150772189.

The spelling of 53503823 in words is "fifty-three million, five hundred three thousand, eight hundred twenty-three".