51030463 has 4 divisors (see below), whose sum is σ = 55669608. Its totient is φ = 46391320.

The previous prime is 51030449. The next prime is 51030509. The reversal of 51030463 is 36403015.

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 51030463 - 2²⁵ = 17476031 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 (51030403) 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, 2319556 + ... + 2319577.

It is an arithmetic number, because the mean of its divisors is an integer number (13917402).

Almost surely, 2^51030463 is an apocalyptic number.

51030463 is a deficient number, since it is larger than the sum of its proper divisors (4639145).

51030463 is a wasteful number, since it uses less digits than its factorization.

51030463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639144.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 51030463 is about 7143.5609467548. The cubic root of 51030463 is about 370.9167987637.

Adding to 51030463 its reverse (36403015), we get a palindrome (87433478).

The spelling of 51030463 in words is "fifty-one million, thirty thousand, four hundred sixty-three".