1053521582520 has 128 divisors (see below), whose sum is σ = 3448181456640. Its totient is φ = 255377495040.

The previous prime is 1053521582513. The next prime is 1053521582521. The reversal of 1053521582520 is 252851253501.

It is a super-2 number, since 2×1053521582520² (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 (1053521582521) 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, 20020564 + ... + 20073116.

It is an arithmetic number, because the mean of its divisors is an integer number (26938917630).

Almost surely, 2^{1053521582520} is an apocalyptic number.

1053521582520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1053521582520 is an abundant number, since it is smaller than the sum of its proper divisors (2394659874120).

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

1053521582520 is a wasteful number, since it uses less digits than its factorization.

1053521582520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67765 (or 67761 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 39.

The spelling of 1053521582520 in words is "one trillion, fifty-three billion, five hundred twenty-one million, five hundred eighty-two thousand, five hundred twenty".