72514566 has 24 divisors (see below), whose sum is σ = 158674464. Its totient is φ = 23931600.

The previous prime is 72514553. The next prime is 72514567. The reversal of 72514566 is 66541527.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72514566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72514567) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 18126 + ... + 21761.

It is an arithmetic number, because the mean of its divisors is an integer number (6611436).

Almost surely, 2^72514566 is an apocalyptic number.

72514566 is an abundant number, since it is smaller than the sum of its proper divisors (86159898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72514566 is a wasteful number, since it uses less digits than its factorization.

72514566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39996 (or 39993 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 72514566 is about 8515.5484849773. The cubic root of 72514566 is about 417.0054689344.

The spelling of 72514566 in words is "seventy-two million, five hundred fourteen thousand, five hundred sixty-six".