51549353 has 2 divisors, whose sum is σ = 51549354. Its totient is φ = 51549352.

The previous prime is 51549347. The next prime is 51549361. The reversal of 51549353 is 35394515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50865424 + 683929 = 7132^2 + 827^2 .

It is a cyclic number.

It is not a de Polignac number, because 51549353 - 2⁸ = 51549097 is a prime.

It is a super-3 number, since 3×51549353³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (51549653) 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 as a sum of consecutive naturals, namely, 25774676 + 25774677.

It is an arithmetic number, because the mean of its divisors is an integer number (25774677).

Almost surely, 2^51549353 is an apocalyptic number.

It is an amenable number.

51549353 is a deficient number, since it is larger than the sum of its proper divisors (1).

51549353 is an equidigital number, since it uses as much as digits as its factorization.

51549353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 35.

The square root of 51549353 is about 7179.7878102351. The cubic root of 51549353 is about 372.1697518903.

The spelling of 51549353 in words is "fifty-one million, five hundred forty-nine thousand, three hundred fifty-three".