51461242 has 8 divisors (see below), whose sum is σ = 88219296. Its totient is φ = 22054812.

The previous prime is 51461233. The next prime is 51461309. The reversal of 51461242 is 24216415.

It is a happy number.

51461242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837888 + ... + 1837915.

It is an arithmetic number, because the mean of its divisors is an integer number (11027412).

Almost surely, 2^51461242 is an apocalyptic number.

51461242 is a deficient number, since it is larger than the sum of its proper divisors (36758054).

51461242 is a wasteful number, since it uses less digits than its factorization.

51461242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675812.

The product of its digits is 1920, while the sum is 25.

The square root of 51461242 is about 7173.6491411275. The cubic root of 51461242 is about 371.9575866008.

Adding to 51461242 its reverse (24216415), we get a palindrome (75677657).

The spelling of 51461242 in words is "fifty-one million, four hundred sixty-one thousand, two hundred forty-two".