53662172436623 has 2 divisors, whose sum is σ = 53662172436624. Its totient is φ = 53662172436622.

The previous prime is 53662172436617. The next prime is 53662172436673. The reversal of 53662172436623 is 32663427126635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53662172436623 - 2¹⁴ = 53662172420239 is a prime.

It is a super-2 number, since 2×53662172436623² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53662172436673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26831086218311 + 26831086218312.

It is an arithmetic number, because the mean of its divisors is an integer number (26831086218312).

Almost surely, 2^{53662172436623} is an apocalyptic number.

53662172436623 is a deficient number, since it is larger than the sum of its proper divisors (1).

53662172436623 is an equidigital number, since it uses as much as digits as its factorization.

53662172436623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 56.

The spelling of 53662172436623 in words is "fifty-three trillion, six hundred sixty-two billion, one hundred seventy-two million, four hundred thirty-six thousand, six hundred twenty-three".