1720941255 has 96 divisors (see below), whose sum is σ = 3391819200. Its totient is φ = 827228160.

The previous prime is 1720941251. The next prime is 1720941301. The reversal of 1720941255 is 5521490271.

It is not a de Polignac number, because 1720941255 - 2² = 1720941251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720941251) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2237511 + ... + 2238279.

It is an arithmetic number, because the mean of its divisors is an integer number (35331450).

Almost surely, 2^1720941255 is an apocalyptic number.

1720941255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1720941255 is a deficient number, since it is larger than the sum of its proper divisors (1670877945).

1720941255 is a wasteful number, since it uses less digits than its factorization.

1720941255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1720941255 is about 41484.2289912685. The cubic root of 1720941255 is about 1198.3638013088.

The spelling of 1720941255 in words is "one billion, seven hundred twenty million, nine hundred forty-one thousand, two hundred fifty-five".