1055664457 has 2 divisors, whose sum is σ = 1055664458. Its totient is φ = 1055664456.

The previous prime is 1055664431. The next prime is 1055664479. The reversal of 1055664457 is 7544665501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1016589456 + 39075001 = 31884^2 + 6251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055664457 is a prime.

It is a super-3 number, since 3×1055664457³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1055664157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527832228 + 527832229.

It is an arithmetic number, because the mean of its divisors is an integer number (527832229).

Almost surely, 2^1055664457 is an apocalyptic number.

It is an amenable number.

1055664457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055664457 is an equidigital number, since it uses as much as digits as its factorization.

1055664457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 1055664457 is about 32490.9903973394. The cubic root of 1055664457 is about 1018.2208048487.

The spelling of 1055664457 in words is "one billion, fifty-five million, six hundred sixty-four thousand, four hundred fifty-seven".