72024529 has 4 divisors (see below), whose sum is σ = 76261284. Its totient is φ = 67787776.

The previous prime is 72024503. The next prime is 72024553. The reversal of 72024529 is 92542027.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51093904 + 20930625 = 7148^2 + 4575^2 .

It is a cyclic number.

It is not a de Polignac number, because 72024529 - 2⁷ = 72024401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72024529.

It is not an unprimeable number, because it can be changed into a prime (72025529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2118352 + ... + 2118385.

It is an arithmetic number, because the mean of its divisors is an integer number (19065321).

Almost surely, 2^72024529 is an apocalyptic number.

It is an amenable number.

72024529 is a deficient number, since it is larger than the sum of its proper divisors (4236755).

72024529 is a wasteful number, since it uses less digits than its factorization.

72024529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236754.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 72024529 is about 8486.7266363422. The cubic root of 72024529 is about 416.0640021873.

The spelling of 72024529 in words is "seventy-two million, twenty-four thousand, five hundred twenty-nine".