51454716 has 72 divisors (see below), whose sum is σ = 131312496. Its totient is φ = 15667200.

The previous prime is 51454693. The next prime is 51454723. The reversal of 51454716 is 61745415.

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, 128116 + ... + 128516.

Almost surely, 2^51454716 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 51454716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65656248).

51454716 is an abundant number, since it is smaller than the sum of its proper divisors (79857780).

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

51454716 is a wasteful number, since it uses less digits than its factorization.

51454716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 460 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 51454716 is about 7173.1942675492. The cubic root of 51454716 is about 371.9418628073.

The spelling of 51454716 in words is "fifty-one million, four hundred fifty-four thousand, seven hundred sixteen".