51146446 has 8 divisors (see below), whose sum is σ = 82621224. Its totient is φ = 23606040.

The previous prime is 51146419. The next prime is 51146449. The reversal of 51146446 is 64464115.

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 (51146449) 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, 983560 + ... + 983611.

It is an arithmetic number, because the mean of its divisors is an integer number (10327653).

Almost surely, 2^51146446 is an apocalyptic number.

51146446 is a deficient number, since it is larger than the sum of its proper divisors (31474778).

51146446 is a wasteful number, since it uses less digits than its factorization.

51146446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967186.

The product of its digits is 11520, while the sum is 31.

The square root of 51146446 is about 7151.6743494094. The cubic root of 51146446 is about 371.1975950396.

The spelling of 51146446 in words is "fifty-one million, one hundred forty-six thousand, four hundred forty-six".