71552623 has 2 divisors, whose sum is σ = 71552624. Its totient is φ = 71552622.

The previous prime is 71552603. The next prime is 71552647. The reversal of 71552623 is 32625517.

It is a weak prime.

It is an emirp because it is prime and its reverse (32625517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71552623 - 2⁹ = 71552111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71552603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35776311 + 35776312.

It is an arithmetic number, because the mean of its divisors is an integer number (35776312).

Almost surely, 2^71552623 is an apocalyptic number.

71552623 is a deficient number, since it is larger than the sum of its proper divisors (1).

71552623 is an equidigital number, since it uses as much as digits as its factorization.

71552623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 31.

The square root of 71552623 is about 8458.8783535407. The cubic root of 71552623 is about 415.1533240985.

The spelling of 71552623 in words is "seventy-one million, five hundred fifty-two thousand, six hundred twenty-three".