72524623 has 2 divisors, whose sum is σ = 72524624. Its totient is φ = 72524622.

The previous prime is 72524597. The next prime is 72524659. The reversal of 72524623 is 32642527.

It is a weak prime.

It is an emirp because it is prime and its reverse (32642527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72524623 - 2⁵ = 72524591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72564623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36262311 + 36262312.

It is an arithmetic number, because the mean of its divisors is an integer number (36262312).

Almost surely, 2^72524623 is an apocalyptic number.

72524623 is a deficient number, since it is larger than the sum of its proper divisors (1).

72524623 is an equidigital number, since it uses as much as digits as its factorization.

72524623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 72524623 is about 8516.1389725626. The cubic root of 72524623 is about 417.0247461195.

The spelling of 72524623 in words is "seventy-two million, five hundred twenty-four thousand, six hundred twenty-three".