72425322553 has 2 divisors, whose sum is σ = 72425322554. Its totient is φ = 72425322552.

The previous prime is 72425322499. The next prime is 72425322643. The reversal of 72425322553 is 35522352427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70388334864 + 2036987689 = 265308^2 + 45133^2 .

It is an emirp because it is prime and its reverse (35522352427) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72425322553 is a prime.

It is not a weakly prime, because it can be changed into another prime (72425322953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36212661276 + 36212661277.

It is an arithmetic number, because the mean of its divisors is an integer number (36212661277).

Almost surely, 2^72425322553 is an apocalyptic number.

It is an amenable number.

72425322553 is a deficient number, since it is larger than the sum of its proper divisors (1).

72425322553 is an equidigital number, since it uses as much as digits as its factorization.

72425322553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 40.

The spelling of 72425322553 in words is "seventy-two billion, four hundred twenty-five million, three hundred twenty-two thousand, five hundred fifty-three".