72995563 has 2 divisors, whose sum is σ = 72995564. Its totient is φ = 72995562.

The previous prime is 72995557. The next prime is 72995609. The reversal of 72995563 is 36559927.

It is a happy number.

It is an a-pointer prime, because the next prime (72995609) can be obtained adding 72995563 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72995563 - 2⁹ = 72995051 is a prime.

It is not a weakly prime, because it can be changed into another prime (72995063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36497781 + 36497782.

It is an arithmetic number, because the mean of its divisors is an integer number (36497782).

Almost surely, 2^72995563 is an apocalyptic number.

72995563 is a deficient number, since it is larger than the sum of its proper divisors (1).

72995563 is an equidigital number, since it uses as much as digits as its factorization.

72995563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 510300, while the sum is 46.

The square root of 72995563 is about 8543.7440855868. The cubic root of 72995563 is about 417.9254520109.

The spelling of 72995563 in words is "seventy-two million, nine hundred ninety-five thousand, five hundred sixty-three".