1053020520 has 128 divisors (see below), whose sum is σ = 3519648000. Its totient is φ = 280039680.

The previous prime is 1053020519. The next prime is 1053020531. The reversal of 1053020520 is 250203501.

It is a happy number.

It is a super-2 number, since 2×1053020520² = 2217704431082140800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1053020493 and 1053020502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473010 + ... + 475230.

It is an arithmetic number, because the mean of its divisors is an integer number (27497250).

Almost surely, 2^1053020520 is an apocalyptic number.

1053020520 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 1053020520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1759824000).

1053020520 is an abundant number, since it is smaller than the sum of its proper divisors (2466627480).

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

1053020520 is a wasteful number, since it uses less digits than its factorization.

1053020520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1053020520 is about 32450.2776567474. The cubic root of 1053020520 is about 1017.3700413759.

The spelling of 1053020520 in words is "one billion, fifty-three million, twenty thousand, five hundred twenty".