55215353324545 has 16 divisors (see below), whose sum is σ = 67874760334080. Its totient is φ = 43094733897600.

The previous prime is 55215353324501. The next prime is 55215353324581. The reversal of 55215353324545 is 54542335351255.

It is not a de Polignac number, because 55215353324545 - 2¹¹ = 55215353322497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55215353324492 and 55215353324501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75036760 + ... + 75769030.

It is an arithmetic number, because the mean of its divisors is an integer number (4242172520880).

Almost surely, 2^{55215353324545} is an apocalyptic number.

It is an amenable number.

55215353324545 is a deficient number, since it is larger than the sum of its proper divisors (12659407009535).

55215353324545 is a wasteful number, since it uses less digits than its factorization.

55215353324545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100136.

The product of its digits is 27000000, while the sum is 52.

The spelling of 55215353324545 in words is "fifty-five trillion, two hundred fifteen billion, three hundred fifty-three million, three hundred twenty-four thousand, five hundred forty-five".