65572730 has 16 divisors (see below), whose sum is σ = 118135584. Its totient is φ = 26205840.

The previous prime is 65572693. The next prime is 65572753. The reversal of 65572730 is 3727556.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13169 + ... + 17451.

It is an arithmetic number, because the mean of its divisors is an integer number (7383474).

Almost surely, 2^65572730 is an apocalyptic number.

65572730 is a deficient number, since it is larger than the sum of its proper divisors (52562854).

65572730 is a wasteful number, since it uses less digits than its factorization.

65572730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 65572730 is about 8097.6990559047. The cubic root of 65572730 is about 403.2500423750.

The spelling of 65572730 in words is "sixty-five million, five hundred seventy-two thousand, seven hundred thirty".