1055145052447 has 2 divisors, whose sum is σ = 1055145052448. Its totient is φ = 1055145052446.

The previous prime is 1055145052433. The next prime is 1055145052457. The reversal of 1055145052447 is 7442505415501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055145052447 is a prime.

It is a super-2 number, since 2×1055145052447² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055145052427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527572526223 + 527572526224.

It is an arithmetic number, because the mean of its divisors is an integer number (527572526224).

Almost surely, 2^{1055145052447} is an apocalyptic number.

1055145052447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055145052447 is an equidigital number, since it uses as much as digits as its factorization.

1055145052447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560000, while the sum is 43.

The spelling of 1055145052447 in words is "one trillion, fifty-five billion, one hundred forty-five million, fifty-two thousand, four hundred forty-seven".