1055551302520 has 128 divisors (see below), whose sum is σ = 2858252806080. Its totient is φ = 345669120000.

The previous prime is 1055551302503. The next prime is 1055551302523. The reversal of 1055551302520 is 252031555501.

It is a super-2 number, since 2×1055551302520² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055551302523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2015931 + ... + 2484970.

Almost surely, 2^{1055551302520} is an apocalyptic number.

1055551302520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055551302520 is an abundant number, since it is smaller than the sum of its proper divisors (1802701503560).

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

1055551302520 is a wasteful number, since it uses less digits than its factorization.

1055551302520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500977 (or 4500973 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 1055551302520 in words is "one trillion, fifty-five billion, five hundred fifty-one million, three hundred two thousand, five hundred twenty".