1053553500 has 96 divisors (see below), whose sum is σ = 3408874560. Its totient is φ = 280944000.

The previous prime is 1053553481. The next prime is 1053553549. The reversal of 1053553500 is 53553501.

1053553500 is a `hidden beast` number, since 10 + 53 + 553 + 50 + 0 = 666.

It is a super-2 number, since 2×1053553500² = 2219949954724500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 25521 + ... + 52520.

It is an arithmetic number, because the mean of its divisors is an integer number (35509110).

Almost surely, 2^1053553500 is an apocalyptic number.

1053553500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1053553500 is an abundant number, since it is smaller than the sum of its proper divisors (2355321060).

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

1053553500 is a wasteful number, since it uses less digits than its factorization.

1053553500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78069 (or 78051 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 1053553500 is about 32458.4888742529. The cubic root of 1053553500 is about 1017.5416576666.

Subtracting from 1053553500 its reverse (53553501), we obtain a palindrome (999999999).

The spelling of 1053553500 in words is "one billion, fifty-three million, five hundred fifty-three thousand, five hundred".