51204633 has 16 divisors (see below), whose sum is σ = 72540480. Its totient is φ = 32066496.

The previous prime is 51204631. The next prime is 51204649. The reversal of 51204633 is 33640215.

It is a happy number.

It is not a de Polignac number, because 51204633 - 2¹ = 51204631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51204631) 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 15 ways as a sum of consecutive naturals, for example, 4735 + ... + 11172.

It is an arithmetic number, because the mean of its divisors is an integer number (4533780).

Almost surely, 2^51204633 is an apocalyptic number.

It is an amenable number.

51204633 is a deficient number, since it is larger than the sum of its proper divisors (21335847).

51204633 is a wasteful number, since it uses less digits than its factorization.

51204633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15976.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 51204633 is about 7155.7412613928. The cubic root of 51204633 is about 371.3383066018.

Adding to 51204633 its reverse (33640215), we get a palindrome (84844848).

The spelling of 51204633 in words is "fifty-one million, two hundred four thousand, six hundred thirty-three".