1055610555520 has 96 divisors (see below), whose sum is σ = 2680746760980. Its totient is φ = 397406257152.

The previous prime is 1055610555511. The next prime is 1055610555521. The reversal of 1055610555520 is 255550165501.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 887228357184 + 168382198336 = 941928^2 + 410344^2 .

It is a super-2 number, since 2×1055610555520² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1055610555521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2668659 + ... + 3038578.

Almost surely, 2^{1055610555520} is an apocalyptic number.

1055610555520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055610555520 is an abundant number, since it is smaller than the sum of its proper divisors (1625136205460).

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

1055610555520 is an equidigital number, since it uses as much as digits as its factorization.

1055610555520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707290 (or 5707261 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 40.

The spelling of 1055610555520 in words is "one trillion, fifty-five billion, six hundred ten million, five hundred fifty-five thousand, five hundred twenty".