51147458 has 16 divisors (see below), whose sum is σ = 83856384. Its totient is φ = 23292480.

The previous prime is 51147457. The next prime is 51147497. The reversal of 51147458 is 85474115.

It is not an unprimeable number, because it can be changed into a prime (51147457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23210 + ... + 25317.

It is an arithmetic number, because the mean of its divisors is an integer number (5241024).

Almost surely, 2^51147458 is an apocalyptic number.

51147458 is a deficient number, since it is larger than the sum of its proper divisors (32708926).

51147458 is a wasteful number, since it uses less digits than its factorization.

51147458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48577.

The product of its digits is 22400, while the sum is 35.

The square root of 51147458 is about 7151.7451017217. The cubic root of 51147458 is about 371.2000432350.

The spelling of 51147458 in words is "fifty-one million, one hundred forty-seven thousand, four hundred fifty-eight".