51335906 has 8 divisors (see below), whose sum is σ = 78456924. Its totient is φ = 25183600.

The previous prime is 51335899. The next prime is 51335927. The reversal of 51335906 is 60953315.

51335906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49350625 + 1985281 = 7025^2 + 1409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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 in 3 ways as a sum of consecutive naturals, for example, 242045 + ... + 242256.

Almost surely, 2^51335906 is an apocalyptic number.

51335906 is a deficient number, since it is larger than the sum of its proper divisors (27121018).

51335906 is a wasteful number, since it uses less digits than its factorization.

51335906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484356.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 51335906 is about 7164.9079547472. The cubic root of 51335906 is about 371.6553683772.

The spelling of 51335906 in words is "fifty-one million, three hundred thirty-five thousand, nine hundred six".