53129623 has 2 divisors, whose sum is σ = 53129624. Its totient is φ = 53129622.

The previous prime is 53129621. The next prime is 53129627. The reversal of 53129623 is 32692135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53129623 - 2¹ = 53129621 is a prime.

Together with 53129621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53129621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26564811 + 26564812.

It is an arithmetic number, because the mean of its divisors is an integer number (26564812).

Almost surely, 2^53129623 is an apocalyptic number.

53129623 is a deficient number, since it is larger than the sum of its proper divisors (1).

53129623 is an equidigital number, since it uses as much as digits as its factorization.

53129623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 31.

The square root of 53129623 is about 7289.0069968412. The cubic root of 53129623 is about 375.9345531744.

The spelling of 53129623 in words is "fifty-three million, one hundred twenty-nine thousand, six hundred twenty-three".