72555383 has 2 divisors, whose sum is σ = 72555384. Its totient is φ = 72555382.

The previous prime is 72555331. The next prime is 72555389. The reversal of 72555383 is 38355527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72555383 - 2²² = 68361079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72555389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36277691 + 36277692.

It is an arithmetic number, because the mean of its divisors is an integer number (36277692).

Almost surely, 2^72555383 is an apocalyptic number.

72555383 is a deficient number, since it is larger than the sum of its proper divisors (1).

72555383 is an equidigital number, since it uses as much as digits as its factorization.

72555383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 38.

The square root of 72555383 is about 8517.9447638500. The cubic root of 72555383 is about 417.0836956070.

The spelling of 72555383 in words is "seventy-two million, five hundred fifty-five thousand, three hundred eighty-three".