53513220402445 has 4 divisors (see below), whose sum is σ = 64215864482940. Its totient is φ = 42810576321952.

The previous prime is 53513220402427. The next prime is 53513220402469. The reversal of 53513220402445 is 54420402231535.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41233003791849 + 12280216610596 = 6421293^2 + 3504314^2 .

It is a cyclic number.

It is not a de Polignac number, because 53513220402445 - 2¹⁵ = 53513220369677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53513220402398 and 53513220402407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5351322040240 + ... + 5351322040249.

It is an arithmetic number, because the mean of its divisors is an integer number (16053966120735).

Almost surely, 2^{53513220402445} is an apocalyptic number.

It is an amenable number.

53513220402445 is a deficient number, since it is larger than the sum of its proper divisors (10702644080495).

53513220402445 is a wasteful number, since it uses less digits than its factorization.

53513220402445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10702644080494.

The product of its (nonzero) digits is 576000, while the sum is 40.

The spelling of 53513220402445 in words is "fifty-three trillion, five hundred thirteen billion, two hundred twenty million, four hundred two thousand, four hundred forty-five".