51447430 has 8 divisors (see below), whose sum is σ = 92605392. Its totient is φ = 20578968.

The previous prime is 51447391. The next prime is 51447437. The reversal of 51447430 is 3474415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51447437) 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, 2572362 + ... + 2572381.

It is an arithmetic number, because the mean of its divisors is an integer number (11575674).

Almost surely, 2^51447430 is an apocalyptic number.

51447430 is a deficient number, since it is larger than the sum of its proper divisors (41157962).

51447430 is a wasteful number, since it uses less digits than its factorization.

51447430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5144750.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 51447430 is about 7172.6863865640. The cubic root of 51447430 is about 371.9243062933.

The spelling of 51447430 in words is "fifty-one million, four hundred forty-seven thousand, four hundred thirty".