51416463 has 16 divisors (see below), whose sum is σ = 78640640. Its totient is φ = 29271456.

The previous prime is 51416459. The next prime is 51416471. The reversal of 51416463 is 36461415.

It is not a de Polignac number, because 51416463 - 2² = 51416459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51416463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51416423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398 + ... + 10236.

It is an arithmetic number, because the mean of its divisors is an integer number (4915040).

Almost surely, 2^51416463 is an apocalyptic number.

51416463 is a deficient number, since it is larger than the sum of its proper divisors (27224177).

51416463 is a wasteful number, since it uses less digits than its factorization.

51416463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9126.

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

The square root of 51416463 is about 7170.5273864619. The cubic root of 51416463 is about 371.8496689946.

Adding to 51416463 its reverse (36461415), we get a palindrome (87877878).

The spelling of 51416463 in words is "fifty-one million, four hundred sixteen thousand, four hundred sixty-three".