720743055 has 16 divisors (see below), whose sum is σ = 1213883520. Its totient is φ = 364164768.

The previous prime is 720743047. The next prime is 720743057. The reversal of 720743055 is 550347027.

It is not a de Polignac number, because 720743055 - 2³ = 720743047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720743057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264177 + ... + 1264746.

It is an arithmetic number, because the mean of its divisors is an integer number (75867720).

Almost surely, 2^720743055 is an apocalyptic number.

720743055 is a deficient number, since it is larger than the sum of its proper divisors (493140465).

720743055 is a wasteful number, since it uses less digits than its factorization.

720743055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528950.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 720743055 is about 26846.6581719215. The cubic root of 720743055 is about 896.5891701764.

The spelling of 720743055 in words is "seven hundred twenty million, seven hundred forty-three thousand, fifty-five".