53443031340 has 48 divisors (see below), whose sum is σ = 150964759008. Its totient is φ = 14125353984.

The previous prime is 53443031309. The next prime is 53443031353. The reversal of 53443031340 is 4313034435.

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

It is a junction number, because it is equal to n+sod(n) for n = 53443031298 and 53443031307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3934447 + ... + 3948006.

It is an arithmetic number, because the mean of its divisors is an integer number (3145099146).

Almost surely, 2^53443031340 is an apocalyptic number.

It is an amenable number.

53443031340 is an abundant number, since it is smaller than the sum of its proper divisors (97521727668).

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

53443031340 is a wasteful number, since it uses less digits than its factorization.

53443031340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882578 (or 7882576 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 53443031340 its reverse (4313034435), we get a palindrome (57756065775).

The spelling of 53443031340 in words is "fifty-three billion, four hundred forty-three million, thirty-one thousand, three hundred forty".