72524641 has 4 divisors (see below), whose sum is σ = 82885312. Its totient is φ = 62163972.

The previous prime is 72524623. The next prime is 72524659. The reversal of 72524641 is 14642527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (72524623) and next prime (72524659).

It is a cyclic number.

It is not a de Polignac number, because 72524641 - 2¹⁹ = 72000353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72524671) 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 3 ways as a sum of consecutive naturals, for example, 5180325 + ... + 5180338.

It is an arithmetic number, because the mean of its divisors is an integer number (20721328).

Almost surely, 2^72524641 is an apocalyptic number.

It is an amenable number.

72524641 is a deficient number, since it is larger than the sum of its proper divisors (10360671).

72524641 is a wasteful number, since it uses less digits than its factorization.

72524641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10360670.

The product of its digits is 13440, while the sum is 31.

The square root of 72524641 is about 8516.1400293795. The cubic root of 72524641 is about 417.0247806201.

The spelling of 72524641 in words is "seventy-two million, five hundred twenty-four thousand, six hundred forty-one".