51492646 has 8 divisors (see below), whose sum is σ = 77271120. Its totient is φ = 25735608.

The previous prime is 51492611. The next prime is 51492647. The reversal of 51492646 is 64629415.

51492646 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51492647) by changing a digit.

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, 3735 + ... + 10813.

It is an arithmetic number, because the mean of its divisors is an integer number (9658890).

Almost surely, 2^51492646 is an apocalyptic number.

51492646 is a deficient number, since it is larger than the sum of its proper divisors (25778474).

51492646 is a wasteful number, since it uses less digits than its factorization.

51492646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10718.

The product of its digits is 51840, while the sum is 37.

The square root of 51492646 is about 7175.8376514523. The cubic root of 51492646 is about 372.0332330506.

The spelling of 51492646 in words is "fifty-one million, four hundred ninety-two thousand, six hundred forty-six".