5165550 has 72 divisors (see below), whose sum is σ = 14962584. Its totient is φ = 1270080.

The previous prime is 5165543. The next prime is 5165551. The reversal of 5165550 is 555615.

5165550 is a `hidden beast` number, since 5 + 1 + 655 + 5 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5165551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5409 + ... + 6291.

Almost surely, 2^5165550 is an apocalyptic number.

5165550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5165550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7481292).

5165550 is an abundant number, since it is smaller than the sum of its proper divisors (9797034).

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

5165550 is a wasteful number, since it uses less digits than its factorization.

5165550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 5165550 is about 2272.7846356397. The cubic root of 5165550 is about 172.8643841226.

The spelling of 5165550 in words is "five million, one hundred sixty-five thousand, five hundred fifty".