53521723 has 2 divisors, whose sum is σ = 53521724. Its totient is φ = 53521722.

The previous prime is 53521709. The next prime is 53521751. The reversal of 53521723 is 32712535.

It is an a-pointer prime, because the next prime (53521751) can be obtained adding 53521723 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53521723 - 2⁵ = 53521691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53521691 and 53521700.

It is not a weakly prime, because it can be changed into another prime (53521703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26760861 + 26760862.

It is an arithmetic number, because the mean of its divisors is an integer number (26760862).

Almost surely, 2^53521723 is an apocalyptic number.

53521723 is a deficient number, since it is larger than the sum of its proper divisors (1).

53521723 is an equidigital number, since it uses as much as digits as its factorization.

53521723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 28.

The square root of 53521723 is about 7315.8542221671. The cubic root of 53521723 is about 376.8570943899.

The spelling of 53521723 in words is "fifty-three million, five hundred twenty-one thousand, seven hundred twenty-three".