1053521280 has 768 divisors, whose sum is σ = 4639939200. Its totient is φ = 214695936.

The previous prime is 1053521269. The next prime is 1053521303. The reversal of 1053521280 is 821253501.

It is a happy number.

1053521280 is a `hidden beast` number, since 1 + 0 + 535 + 2 + 128 + 0 = 666.

It is a super-2 number, since 2×1053521280² = 2219814174825676800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19877734 + ... + 19877786.

Almost surely, 2^1053521280 is an apocalyptic number.

1053521280 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 1053521280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2319969600).

1053521280 is an abundant number, since it is smaller than the sum of its proper divisors (3586417920).

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

1053521280 is a wasteful number, since it uses less digits than its factorization.

1053521280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1053521280 is about 32457.9925442101. The cubic root of 1053521280 is about 1017.5312846682.

Adding to 1053521280 its reverse (821253501), we get a palindrome (1874774781).

The spelling of 1053521280 in words is "one billion, fifty-three million, five hundred twenty-one thousand, two hundred eighty".