72524104431553 has 2 divisors, whose sum is σ = 72524104431554. Its totient is φ = 72524104431552.

The previous prime is 72524104431473. The next prime is 72524104431557. The reversal of 72524104431553 is 35513440142527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51301793025729 + 21222311405824 = 7162527^2 + 4606768^2 .

It is an emirp because it is prime and its reverse (35513440142527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72524104431553 - 2¹³ = 72524104423361 is a prime.

It is not a weakly prime, because it can be changed into another prime (72524104431557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36262052215776 + 36262052215777.

It is an arithmetic number, because the mean of its divisors is an integer number (36262052215777).

Almost surely, 2^{72524104431553} is an apocalyptic number.

It is an amenable number.

72524104431553 is a deficient number, since it is larger than the sum of its proper divisors (1).

72524104431553 is an equidigital number, since it uses as much as digits as its factorization.

72524104431553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016000, while the sum is 46.

The spelling of 72524104431553 in words is "seventy-two trillion, five hundred twenty-four billion, one hundred four million, four hundred thirty-one thousand, five hundred fifty-three".