72030565 has 16 divisors (see below), whose sum is σ = 88062336. Its totient is φ = 56548800.

The previous prime is 72030559. The next prime is 72030571. The reversal of 72030565 is 56503027.

It is an interprime number because it is at equal distance from previous prime (72030559) and next prime (72030571).

It is not a de Polignac number, because 72030565 - 2⁷ = 72030437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117199 + ... + 117811.

It is an arithmetic number, because the mean of its divisors is an integer number (5503896).

Almost surely, 2^72030565 is an apocalyptic number.

It is an amenable number.

72030565 is a deficient number, since it is larger than the sum of its proper divisors (16031771).

72030565 is a wasteful number, since it uses less digits than its factorization.

72030565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 72030565 is about 8487.0822430326. The cubic root of 72030565 is about 416.0756245804.

The spelling of 72030565 in words is "seventy-two million, thirty thousand, five hundred sixty-five".