53403620444 has 6 divisors (see below), whose sum is σ = 93456335784. Its totient is φ = 26701810220.

The previous prime is 53403620419. The next prime is 53403620449. The reversal of 53403620444 is 44402630435.

53403620444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53403620449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6675452552 + ... + 6675452559.

It is an arithmetic number, because the mean of its divisors is an integer number (15576055964).

Almost surely, 2^53403620444 is an apocalyptic number.

It is an amenable number.

53403620444 is a deficient number, since it is larger than the sum of its proper divisors (40052715340).

53403620444 is a wasteful number, since it uses less digits than its factorization.

53403620444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13350905115 (or 13350905113 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Subtracting from 53403620444 its reverse (44402630435), we obtain a palindrome (9000990009).

The spelling of 53403620444 in words is "fifty-three billion, four hundred three million, six hundred twenty thousand, four hundred forty-four".