72055630 has 8 divisors (see below), whose sum is σ = 129700152. Its totient is φ = 28822248.

The previous prime is 72055603. The next prime is 72055631. The reversal of 72055630 is 3655027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72055631) 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, 3602772 + ... + 3602791.

It is an arithmetic number, because the mean of its divisors is an integer number (16212519).

Almost surely, 2^72055630 is an apocalyptic number.

72055630 is a deficient number, since it is larger than the sum of its proper divisors (57644522).

72055630 is a wasteful number, since it uses less digits than its factorization.

72055630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7205570.

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

The square root of 72055630 is about 8488.5587704863. The cubic root of 72055630 is about 416.1238806047.

The spelling of 72055630 in words is "seventy-two million, fifty-five thousand, six hundred thirty".