1055278852500 has 120 divisors (see below), whose sum is σ = 3079564948768. Its totient is φ = 281165040000.

The previous prime is 1055278852487. The next prime is 1055278852501. The reversal of 1055278852500 is 52588725501.

It is a super-2 number, since 2×1055278852500² (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 1055278852500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055278852501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8722422 + ... + 8842578.

Almost surely, 2^{1055278852500} is an apocalyptic number.

1055278852500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055278852500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1539782474384).

1055278852500 is an abundant number, since it is smaller than the sum of its proper divisors (2024286096268).

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

1055278852500 is a wasteful number, since it uses less digits than its factorization.

1055278852500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121355 (or 121338 counting only the distinct ones).

The product of its (nonzero) digits is 1120000, while the sum is 48.

The spelling of 1055278852500 in words is "one trillion, fifty-five billion, two hundred seventy-eight million, eight hundred fifty-two thousand, five hundred".