55020004647 has 16 divisors (see below), whose sum is σ = 73725601248. Its totient is φ = 36497423360.

The previous prime is 55020004643. The next prime is 55020004667. The reversal of 55020004647 is 74640002055.

It is a cyclic number.

It is not a de Polignac number, because 55020004647 - 2² = 55020004643 is a prime.

It is a super-2 number, since 2×55020004647² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55020004643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017247 + ... + 1069967.

It is an arithmetic number, because the mean of its divisors is an integer number (4607850078).

Almost surely, 2^55020004647 is an apocalyptic number.

55020004647 is a deficient number, since it is larger than the sum of its proper divisors (18705596601).

55020004647 is a wasteful number, since it uses less digits than its factorization.

55020004647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54450.

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 55020004647 in words is "fifty-five billion, twenty million, four thousand, six hundred forty-seven".