1720611053 has 8 divisors (see below), whose sum is σ = 1985882880. Its totient is φ = 1460206800.

The previous prime is 1720611023. The next prime is 1720611059. The reversal of 1720611053 is 3501160271.

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

It is a cyclic number.

It is not a de Polignac number, because 1720611053 - 2⁶ = 1720610989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720611059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216133 + ... + 1217546.

It is an arithmetic number, because the mean of its divisors is an integer number (248235360).

Almost surely, 2^1720611053 is an apocalyptic number.

It is an amenable number.

1720611053 is a deficient number, since it is larger than the sum of its proper divisors (265271827).

1720611053 is a wasteful number, since it uses less digits than its factorization.

1720611053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433787.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1720611053 is about 41480.2489505548. The cubic root of 1720611053 is about 1198.2871518912.

The spelling of 1720611053 in words is "one billion, seven hundred twenty million, six hundred eleven thousand, fifty-three".