53623393 has 2 divisors, whose sum is σ = 53623394. Its totient is φ = 53623392.

The previous prime is 53623369. The next prime is 53623399. The reversal of 53623393 is 39332635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36084049 + 17539344 = 6007^2 + 4188^2 .

It is a cyclic number.

It is not a de Polignac number, because 53623393 - 2¹³ = 53615201 is a prime.

It is equal to p_3204988 and since 53623393 and 3204988 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (53623399) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26811696 + 26811697.

It is an arithmetic number, because the mean of its divisors is an integer number (26811697).

Almost surely, 2^53623393 is an apocalyptic number.

It is an amenable number.

53623393 is a deficient number, since it is larger than the sum of its proper divisors (1).

53623393 is an equidigital number, since it uses as much as digits as its factorization.

53623393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 34.

The square root of 53623393 is about 7322.7995329655. The cubic root of 53623393 is about 377.0955696798.

The spelling of 53623393 in words is "fifty-three million, six hundred twenty-three thousand, three hundred ninety-three".