51828146 has 4 divisors (see below), whose sum is σ = 77742222. Its totient is φ = 25914072.

The previous prime is 51828109. The next prime is 51828149. The reversal of 51828146 is 64182815.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 35868121 + 15960025 = 5989^2 + 3995^2 .

It is not an unprimeable number, because it can be changed into a prime (51828149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12957035 + ... + 12957038.

Almost surely, 2^51828146 is an apocalyptic number.

51828146 is a deficient number, since it is larger than the sum of its proper divisors (25914076).

51828146 is a wasteful number, since it uses less digits than its factorization.

51828146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25914075.

The product of its digits is 15360, while the sum is 35.

The square root of 51828146 is about 7199.1767584912. The cubic root of 51828146 is about 372.8394779197.

The spelling of 51828146 in words is "fifty-one million, eight hundred twenty-eight thousand, one hundred forty-six".