51849604 has 12 divisors (see below), whose sum is σ = 91672924. Its totient is φ = 25657344.

The previous prime is 51849599. The next prime is 51849607. The reversal of 51849604 is 40694815.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22581504 + 29268100 = 4752^2 + 5410^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51849607) 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, 66429 + ... + 67204.

Almost surely, 2^51849604 is an apocalyptic number.

It is an amenable number.

51849604 is a deficient number, since it is larger than the sum of its proper divisors (39823320).

51849604 is a wasteful number, since it uses less digits than its factorization.

51849604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133734 (or 133732 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 51849604 is about 7200.6669135574. Note that the first 3 decimals coincide. The cubic root of 51849604 is about 372.8909254200.

It can be divided in two parts, 5184 and 9604, that multiplied together give a 4-th power (49787136 = 84⁴).

The spelling of 51849604 in words is "fifty-one million, eight hundred forty-nine thousand, six hundred four".