72513411 has 16 divisors (see below), whose sum is σ = 101414400. Its totient is φ = 45999360.

The previous prime is 72513409. The next prime is 72513421. The reversal of 72513411 is 11431527.

It is not a de Polignac number, because 72513411 - 2¹ = 72513409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72513401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11091 + ... + 16371.

It is an arithmetic number, because the mean of its divisors is an integer number (6338400).

Almost surely, 2^72513411 is an apocalyptic number.

72513411 is a deficient number, since it is larger than the sum of its proper divisors (28900989).

72513411 is a wasteful number, since it uses less digits than its factorization.

72513411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506.

The product of its digits is 840, while the sum is 24.

The square root of 72513411 is about 8515.4806675842. The cubic root of 72513411 is about 417.0032549246.

Adding to 72513411 its reverse (11431527), we get a palindrome (83944938).

The spelling of 72513411 in words is "seventy-two million, five hundred thirteen thousand, four hundred eleven".