51466049 has 4 divisors (see below), whose sum is σ = 51666564. Its totient is φ = 51265536.

The previous prime is 51466043. The next prime is 51466057. The reversal of 51466049 is 94066415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94066415 = 5 ⋅18813283.

It can be written as a sum of positive squares in 2 ways, for example, as 48720400 + 2745649 = 6980^2 + 1657^2 .

It is a cyclic number.

It is not a de Polignac number, because 51466049 - 2⁴ = 51466033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51466043) 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 3 ways as a sum of consecutive naturals, for example, 99872 + ... + 100385.

It is an arithmetic number, because the mean of its divisors is an integer number (12916641).

Almost surely, 2^51466049 is an apocalyptic number.

It is an amenable number.

51466049 is a deficient number, since it is larger than the sum of its proper divisors (200515).

51466049 is a wasteful number, since it uses less digits than its factorization.

51466049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200514.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 51466049 is about 7173.9841789622. The cubic root of 51466049 is about 371.9691677726.

The spelling of 51466049 in words is "fifty-one million, four hundred sixty-six thousand, forty-nine".