53144424340 has 24 divisors (see below), whose sum is σ = 127546618752. Its totient is φ = 18220945440.

The previous prime is 53144424317. The next prime is 53144424371. The reversal of 53144424340 is 4342444135.

It is a junction number, because it is equal to n+sod(n) for n = 53144424296 and 53144424305.

It is a congruent number.

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, 189801376 + ... + 189801655.

It is an arithmetic number, because the mean of its divisors is an integer number (5314442448).

Almost surely, 2^53144424340 is an apocalyptic number.

It is an amenable number.

53144424340 is an abundant number, since it is smaller than the sum of its proper divisors (74402194412).

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

53144424340 is a wasteful number, since it uses less digits than its factorization.

53144424340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379603047 (or 379603045 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 53144424340 its reverse (4342444135), we get a palindrome (57486868475).

The spelling of 53144424340 in words is "fifty-three billion, one hundred forty-four million, four hundred twenty-four thousand, three hundred forty".