51803970 has 32 divisors (see below), whose sum is σ = 124612992. Its totient is φ = 13782912.

The previous prime is 51803933. The next prime is 51804001. The reversal of 51803970 is 7930815.

51803970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 13374 + ... + 16806.

It is an arithmetic number, because the mean of its divisors is an integer number (3894156).

Almost surely, 2^51803970 is an apocalyptic number.

51803970 is an abundant number, since it is smaller than the sum of its proper divisors (72809022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51803970 is a wasteful number, since it uses less digits than its factorization.

51803970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 51803970 is about 7197.4974817641. The cubic root of 51803970 is about 372.7814967531.

The spelling of 51803970 in words is "fifty-one million, eight hundred three thousand, nine hundred seventy".