1057557373 has 2 divisors, whose sum is σ = 1057557374. Its totient is φ = 1057557372.

The previous prime is 1057557353. The next prime is 1057557377. The reversal of 1057557373 is 3737557501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 653466969 + 404090404 = 25563^2 + 20102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057557373 is a prime.

It is a super-2 number, since 2×1057557373² = 2236855194373322258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057557377) 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, 528778686 + 528778687.

It is an arithmetic number, because the mean of its divisors is an integer number (528778687).

Almost surely, 2^1057557373 is an apocalyptic number.

It is an amenable number.

1057557373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057557373 is an equidigital number, since it uses as much as digits as its factorization.

1057557373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 385875, while the sum is 43.

The square root of 1057557373 is about 32520.1072107704. The cubic root of 1057557373 is about 1018.8290333356.

The spelling of 1057557373 in words is "one billion, fifty-seven million, five hundred fifty-seven thousand, three hundred seventy-three".