53404523 has 2 divisors, whose sum is σ = 53404524. Its totient is φ = 53404522.

The previous prime is 53404513. The next prime is 53404529. The reversal of 53404523 is 32540435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53404523 - 2¹⁸ = 53142379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53404492 and 53404501.

It is not a weakly prime, because it can be changed into another prime (53404529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26702261 + 26702262.

It is an arithmetic number, because the mean of its divisors is an integer number (26702262).

Almost surely, 2^53404523 is an apocalyptic number.

53404523 is a deficient number, since it is larger than the sum of its proper divisors (1).

53404523 is an equidigital number, since it uses as much as digits as its factorization.

53404523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 53404523 is about 7307.8398313045. The cubic root of 53404523 is about 376.5818171928.

Adding to 53404523 its reverse (32540435), we get a palindrome (85944958).

The spelling of 53404523 in words is "fifty-three million, four hundred four thousand, five hundred twenty-three".