53513321540 has 24 divisors (see below), whose sum is σ = 128431972032. Its totient is φ = 18347424480.

The previous prime is 53513321539. The next prime is 53513321591. The reversal of 53513321540 is 4512331535.

It is a junction number, because it is equal to n+sod(n) for n = 53513321497 and 53513321506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191118866 + ... + 191119145.

It is an arithmetic number, because the mean of its divisors is an integer number (5351332168).

Almost surely, 2^53513321540 is an apocalyptic number.

It is an amenable number.

53513321540 is an abundant number, since it is smaller than the sum of its proper divisors (74918650492).

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

53513321540 is a wasteful number, since it uses less digits than its factorization.

53513321540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382238027 (or 382238025 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 53513321540 in words is "fifty-three billion, five hundred thirteen million, three hundred twenty-one thousand, five hundred forty".