5165998 has 4 divisors (see below), whose sum is σ = 7749000. Its totient is φ = 2582998.

The previous prime is 5165987. The next prime is 5165999. The reversal of 5165998 is 8995615.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8995615 = 5 ⋅1799123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5165999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1291498 + ... + 1291501.

It is an arithmetic number, because the mean of its divisors is an integer number (1937250).

Almost surely, 2^5165998 is an apocalyptic number.

5165998 is a deficient number, since it is larger than the sum of its proper divisors (2583002).

5165998 is a wasteful number, since it uses less digits than its factorization.

5165998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583001.

The product of its digits is 97200, while the sum is 43.

The square root of 5165998 is about 2272.8831910153. The cubic root of 5165998 is about 172.8693813966.

It can be divided in two parts, 51 and 65998, that added together give a square (66049 = 257²).

The spelling of 5165998 in words is "five million, one hundred sixty-five thousand, nine hundred ninety-eight".