5165564550 has 48 divisors (see below), whose sum is σ = 12816947520. Its totient is φ = 1376801440.

The previous prime is 5165564543. The next prime is 5165564603. The reversal of 5165564550 is 554655615.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343489 + ... + 358211.

It is an arithmetic number, because the mean of its divisors is an integer number (267019740).

Almost surely, 2^5165564550 is an apocalyptic number.

5165564550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5165564550 is an abundant number, since it is smaller than the sum of its proper divisors (7651382970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5165564550 is a wasteful number, since it uses less digits than its factorization.

5165564550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17077 (or 17072 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 42.

The square root of 5165564550 is about 71871.8620184562. The cubic root of 5165564550 is about 1728.6454642704.

The spelling of 5165564550 in words is "five billion, one hundred sixty-five million, five hundred sixty-four thousand, five hundred fifty".