51346416 has 80 divisors (see below), whose sum is σ = 149419008. Its totient is φ = 15052800.

The previous prime is 51346403. The next prime is 51346433. The reversal of 51346416 is 61464315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14800 + ... + 17936.

Almost surely, 2^51346416 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 51346416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74709504).

51346416 is an abundant number, since it is smaller than the sum of its proper divisors (98072592).

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

51346416 is a wasteful number, since it uses less digits than its factorization.

51346416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190 (or 3184 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 51346416 is about 7165.6413530123. The cubic root of 51346416 is about 371.6807296477.

The spelling of 51346416 in words is "fifty-one million, three hundred forty-six thousand, four hundred sixteen".