72524991583 has 8 divisors (see below), whose sum is σ = 79121881296. Its totient is φ = 65928720000.

The previous prime is 72524991577. The next prime is 72524991589. The reversal of 72524991583 is 38519942527.

It is an interprime number because it is at equal distance from previous prime (72524991577) and next prime (72524991589).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-72524991583 is a prime.

It is a super-2 number, since 2×72524991583² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72524991589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110583 + ... + 396583.

It is an arithmetic number, because the mean of its divisors is an integer number (9890235162).

Almost surely, 2^72524991583 is an apocalyptic number.

72524991583 is a deficient number, since it is larger than the sum of its proper divisors (6596889713).

72524991583 is a wasteful number, since it uses less digits than its factorization.

72524991583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309065.

The product of its digits is 5443200, while the sum is 55.

The spelling of 72524991583 in words is "seventy-two billion, five hundred twenty-four million, nine hundred ninety-one thousand, five hundred eighty-three".