1055725717 has 2 divisors, whose sum is σ = 1055725718. Its totient is φ = 1055725716.

The previous prime is 1055725669. The next prime is 1055725729. The reversal of 1055725717 is 7175275501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1047234321 + 8491396 = 32361^2 + 2914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055725717 - 2¹⁵ = 1055692949 is a prime.

It is a super-2 number, since 2×1055725717² = 2229113579070328178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055725717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055728717) 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 as a sum of consecutive naturals, namely, 527862858 + 527862859.

It is an arithmetic number, because the mean of its divisors is an integer number (527862859).

Almost surely, 2^1055725717 is an apocalyptic number.

It is an amenable number.

1055725717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055725717 is an equidigital number, since it uses as much as digits as its factorization.

1055725717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85750, while the sum is 40.

The square root of 1055725717 is about 32491.9331065420. The cubic root of 1055725717 is about 1018.2405001852.

The spelling of 1055725717 in words is "one billion, fifty-five million, seven hundred twenty-five thousand, seven hundred seventeen".