53155230520 has 64 divisors (see below), whose sum is σ = 136946603520. Its totient is φ = 18189753984.

The previous prime is 53155230463. The next prime is 53155230553. The reversal of 53155230520 is 2503255135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35052 + ... + 327931.

It is an arithmetic number, because the mean of its divisors is an integer number (2139790680).

Almost surely, 2^53155230520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53155230520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68473301760).

53155230520 is an abundant number, since it is smaller than the sum of its proper divisors (83791373000).

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

53155230520 is a wasteful number, since it uses less digits than its factorization.

53155230520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363524 (or 363520 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 31.

Adding to 53155230520 its reverse (2503255135), we get a palindrome (55658485655).

The spelling of 53155230520 in words is "fifty-three billion, one hundred fifty-five million, two hundred thirty thousand, five hundred twenty".