1055145052452 has 12 divisors (see below), whose sum is σ = 2462005122416. Its totient is φ = 351715017480.

The previous prime is 1055145052447. The next prime is 1055145052457. The reversal of 1055145052452 is 2542505415501.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1055145052447) and next prime (1055145052457).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1055145052452² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055145052452.

It is not an unprimeable number, because it can be changed into a prime (1055145052457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43964377174 + ... + 43964377197.

Almost surely, 2^{1055145052452} is an apocalyptic number.

1055145052452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1055145052452 is an abundant number, since it is smaller than the sum of its proper divisors (1406860069964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055145052452 is a wasteful number, since it uses less digits than its factorization.

1055145052452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87928754378 (or 87928754376 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 1055145052452 in words is "one trillion, fifty-five billion, one hundred forty-five million, fifty-two thousand, four hundred fifty-two".