72563458 has 16 divisors (see below), whose sum is σ = 119725920. Its totient is φ = 32982180.

The previous prime is 72563431. The next prime is 72563471. The reversal of 72563458 is 85436527.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 72563458.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10968 + ... + 16291.

It is an arithmetic number, because the mean of its divisors is an integer number (7482870).

Almost surely, 2^72563458 is an apocalyptic number.

72563458 is a deficient number, since it is larger than the sum of its proper divisors (47162462).

72563458 is a wasteful number, since it uses less digits than its factorization.

72563458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27294 (or 27272 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 72563458 is about 8518.4187499794. The cubic root of 72563458 is about 417.0991680446.

The spelling of 72563458 in words is "seventy-two million, five hundred sixty-three thousand, four hundred fifty-eight".