1055125553409 has 12 divisors (see below), whose sum is σ = 1524602986452. Its totient is φ = 703171154400.

The previous prime is 1055125553401. The next prime is 1055125553411. The reversal of 1055125553409 is 9043555215501.

1055125553409 is a `hidden beast` number, since 1 + 0 + 5 + 51 + 2 + 5 + 553 + 40 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 500924217600 + 554201335809 = 707760^2 + 744447^2 .

It is not a de Polignac number, because 1055125553409 - 2³ = 1055125553401 is a prime.

It is a super-2 number, since 2×1055125553409² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055125553401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20462922 + ... + 20514419.

It is an arithmetic number, because the mean of its divisors is an integer number (127050248871).

Almost surely, 2^{1055125553409} is an apocalyptic number.

It is an amenable number.

1055125553409 is a deficient number, since it is larger than the sum of its proper divisors (469477433043).

1055125553409 is a wasteful number, since it uses less digits than its factorization.

1055125553409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40980208 (or 40980205 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 1055125553409 in words is "one trillion, fifty-five billion, one hundred twenty-five million, five hundred fifty-three thousand, four hundred nine".