72057735 has 48 divisors (see below), whose sum is σ = 134047200. Its totient is φ = 36723456.

The previous prime is 72057719. The next prime is 72057749. The reversal of 72057735 is 53775027.

It is not a de Polignac number, because 72057735 - 2⁴ = 72057719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72057735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70911 + ... + 71919.

It is an arithmetic number, because the mean of its divisors is an integer number (2792650).

Almost surely, 2^72057735 is an apocalyptic number.

72057735 is a deficient number, since it is larger than the sum of its proper divisors (61989465).

72057735 is a wasteful number, since it uses less digits than its factorization.

72057735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 36.

The square root of 72057735 is about 8488.6827600046. The cubic root of 72057735 is about 416.1279327157.

The spelling of 72057735 in words is "seventy-two million, fifty-seven thousand, seven hundred thirty-five".