5151616 has 32 divisors (see below), whose sum is σ = 10367280. Its totient is φ = 2549760.

The previous prime is 5151607. The next prime is 5151617. The reversal of 5151616 is 6161515.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×5151616² = 53078294822912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21256 + ... + 21496.

Almost surely, 2^5151616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5151616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5183640).

5151616 is an abundant number, since it is smaller than the sum of its proper divisors (5215664).

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

5151616 is a wasteful number, since it uses less digits than its factorization.

5151616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 410 counting only the distinct ones).

The product of its digits is 900, while the sum is 25.

The square root of 5151616 is about 2269.7171629963. The cubic root of 5151616 is about 172.7088110546.

The spelling of 5151616 in words is "five million, one hundred fifty-one thousand, six hundred sixteen".