720622255 has 8 divisors (see below), whose sum is σ = 868193424. Its totient is φ = 574200000.

The previous prime is 720622213. The next prime is 720622261. The reversal of 720622255 is 552226027.

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

It is not a de Polignac number, because 720622255 - 2⁷ = 720622127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285846 + ... + 288355.

It is an arithmetic number, because the mean of its divisors is an integer number (108524178).

Almost surely, 2^720622255 is an apocalyptic number.

720622255 is a deficient number, since it is larger than the sum of its proper divisors (147571169).

720622255 is a wasteful number, since it uses less digits than its factorization.

720622255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574457.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 720622255 is about 26844.4082631747. The cubic root of 720622255 is about 896.5390764929.

The spelling of 720622255 in words is "seven hundred twenty million, six hundred twenty-two thousand, two hundred fifty-five".