52105313550 has 48 divisors (see below), whose sum is σ = 133677091440. Its totient is φ = 13415619840.

The previous prime is 52105313509. The next prime is 52105313567. The reversal of 52105313550 is 5531350125.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 5984767 + ... + 5993466.

It is an arithmetic number, because the mean of its divisors is an integer number (2784939405).

Almost surely, 2^52105313550 is an apocalyptic number.

52105313550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52105313550 is an abundant number, since it is smaller than the sum of its proper divisors (81571777890).

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

52105313550 is a wasteful number, since it uses less digits than its factorization.

52105313550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11978277 (or 11978272 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

Adding to 52105313550 its reverse (5531350125), we get a palindrome (57636663675).

The spelling of 52105313550 in words is "fifty-two billion, one hundred five million, three hundred thirteen thousand, five hundred fifty".