53501533220 has 24 divisors (see below), whose sum is σ = 112466635008. Its totient is φ = 21379010400.

The previous prime is 53501533199. The next prime is 53501533273. The reversal of 53501533220 is 2233510535.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1329866 + ... + 1369505.

It is an arithmetic number, because the mean of its divisors is an integer number (4686109792).

Almost surely, 2^53501533220 is an apocalyptic number.

It is an amenable number.

53501533220 is an abundant number, since it is smaller than the sum of its proper divisors (58965101788).

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

53501533220 is a wasteful number, since it uses less digits than its factorization.

53501533220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700371 (or 2700369 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 29.

The spelling of 53501533220 in words is "fifty-three billion, five hundred one million, five hundred thirty-three thousand, two hundred twenty".