53423345352 has 64 divisors (see below), whose sum is σ = 144449585280. Its totient is φ = 16367380992.

The previous prime is 53423345347. The next prime is 53423345369. The reversal of 53423345352 is 25354332435.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 53423345352.

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, 294748 + ... + 440139.

It is an arithmetic number, because the mean of its divisors is an integer number (2257024770).

Almost surely, 2^53423345352 is an apocalyptic number.

53423345352 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

53423345352 is an abundant number, since it is smaller than the sum of its proper divisors (91026239928).

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

53423345352 is a wasteful number, since it uses less digits than its factorization.

53423345352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735142 (or 735138 counting only the distinct ones).

The product of its digits is 648000, while the sum is 39.

Adding to 53423345352 its reverse (25354332435), we get a palindrome (78777677787).

The spelling of 53423345352 in words is "fifty-three billion, four hundred twenty-three million, three hundred forty-five thousand, three hundred fifty-two".