53555343120 has 120 divisors (see below), whose sum is σ = 182905257600. Its totient is φ = 14039355648.

The previous prime is 53555343077. The next prime is 53555343131. The reversal of 53555343120 is 2134355535.

53555343120 is a `hidden beast` number, since 53 + 5 + 553 + 4 + 31 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 587880 + ... + 672839.

It is an arithmetic number, because the mean of its divisors is an integer number (1524210480).

Almost surely, 2^53555343120 is an apocalyptic number.

It is an amenable number.

53555343120 is an abundant number, since it is smaller than the sum of its proper divisors (129349914480).

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

53555343120 is a wasteful number, since it uses less digits than its factorization.

53555343120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260797 (or 1260788 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

Adding to 53555343120 its reverse (2134355535), we get a palindrome (55689698655).

The spelling of 53555343120 in words is "fifty-three billion, five hundred fifty-five million, three hundred forty-three thousand, one hundred twenty".