72052845 has 16 divisors (see below), whose sum is σ = 121352640. Its totient is φ = 36405504.

The previous prime is 72052843. The next prime is 72052847. The reversal of 72052845 is 54825027.

It is an interprime number because it is at equal distance from previous prime (72052843) and next prime (72052847).

It is not a de Polignac number, because 72052845 - 2¹ = 72052843 is a prime.

It is a super-2 number, since 2×72052845² = 10383224945188050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72052843) 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, 126124 + ... + 126693.

It is an arithmetic number, because the mean of its divisors is an integer number (7584540).

Almost surely, 2^72052845 is an apocalyptic number.

It is an amenable number.

72052845 is a deficient number, since it is larger than the sum of its proper divisors (49299795).

72052845 is a wasteful number, since it uses less digits than its factorization.

72052845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252844.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 72052845 is about 8488.3947245636. The cubic root of 72052845 is about 416.1185193769.

The spelling of 72052845 in words is "seventy-two million, fifty-two thousand, eight hundred forty-five".