51147674 has 4 divisors (see below), whose sum is σ = 76721514. Its totient is φ = 25573836.

The previous prime is 51147661. The next prime is 51147697. The reversal of 51147674 is 47674115.

It is a happy number.

51147674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 47706649 + 3441025 = 6907^2 + 1855^2 .

It is a super-2 number, since 2×51147674² = 5232169111220552, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 12786917 + ... + 12786920.

Almost surely, 2^51147674 is an apocalyptic number.

51147674 is a deficient number, since it is larger than the sum of its proper divisors (25573840).

51147674 is a wasteful number, since it uses less digits than its factorization.

51147674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25573839.

The product of its digits is 23520, while the sum is 35.

The square root of 51147674 is about 7151.7602029151. The cubic root of 51147674 is about 371.2005657706.

The spelling of 51147674 in words is "fifty-one million, one hundred forty-seven thousand, six hundred seventy-four".