51051463 has 4 divisors (see below), whose sum is σ = 51067528. Its totient is φ = 51035400.

The previous prime is 51051419. The next prime is 51051487. The reversal of 51051463 is 36415015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51051463 - 2¹³ = 51043271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51051563) 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, 1488 + ... + 10213.

It is an arithmetic number, because the mean of its divisors is an integer number (12766882).

Almost surely, 2^51051463 is an apocalyptic number.

51051463 is a deficient number, since it is larger than the sum of its proper divisors (16065).

51051463 is a wasteful number, since it uses less digits than its factorization.

51051463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16064.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 51051463 is about 7145.0306507390. The cubic root of 51051463 is about 370.9676715436.

Adding to 51051463 its reverse (36415015), we get a palindrome (87466478).

The spelling of 51051463 in words is "fifty-one million, fifty-one thousand, four hundred sixty-three".