55020523528415 has 8 divisors (see below), whose sum is σ = 66419985290400. Its totient is φ = 43752847451872.

The previous prime is 55020523528387. The next prime is 55020523528417. The reversal of 55020523528415 is 51482532502055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55020523528415 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55020523528415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55020523528417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32946420440 + ... + 32946422109.

It is an arithmetic number, because the mean of its divisors is an integer number (8302498161300).

Almost surely, 2^{55020523528415} is an apocalyptic number.

55020523528415 is a deficient number, since it is larger than the sum of its proper divisors (11399461761985).

55020523528415 is a wasteful number, since it uses less digits than its factorization.

55020523528415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65892842721.

The product of its (nonzero) digits is 2400000, while the sum is 47.

The spelling of 55020523528415 in words is "fifty-five trillion, twenty billion, five hundred twenty-three million, five hundred twenty-eight thousand, four hundred fifteen".