1055503697 has 2 divisors, whose sum is σ = 1055503698. Its totient is φ = 1055503696.

The previous prime is 1055503693. The next prime is 1055503819. The reversal of 1055503697 is 7963055501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 742072081 + 313431616 = 27241^2 + 17704^2 .

It is an emirp because it is prime and its reverse (7963055501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1055503697 - 2² = 1055503693 is a prime.

It is a super-2 number, since 2×1055503697² = 2228176108761335618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055503693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527751848 + 527751849.

It is an arithmetic number, because the mean of its divisors is an integer number (527751849).

Almost surely, 2^1055503697 is an apocalyptic number.

It is an amenable number.

1055503697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055503697 is an equidigital number, since it uses as much as digits as its factorization.

1055503697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141750, while the sum is 41.

The square root of 1055503697 is about 32488.5163865634. The cubic root of 1055503697 is about 1018.1691162384.

The spelling of 1055503697 in words is "one billion, fifty-five million, five hundred three thousand, six hundred ninety-seven".