55203562065 has 64 divisors (see below), whose sum is σ = 93891133440. Its totient is φ = 27618589440.

The previous prime is 55203562061. The next prime is 55203562091. The reversal of 55203562065 is 56026530255.

It is not a de Polignac number, because 55203562065 - 2² = 55203562061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55203562061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13913712 + ... + 13917678.

It is an arithmetic number, because the mean of its divisors is an integer number (1467048960).

Almost surely, 2^55203562065 is an apocalyptic number.

It is an amenable number.

55203562065 is a deficient number, since it is larger than the sum of its proper divisors (38687571375).

55203562065 is a wasteful number, since it uses less digits than its factorization.

55203562065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 55203562065 in words is "fifty-five billion, two hundred three million, five hundred sixty-two thousand, sixty-five".