51047590 has 16 divisors (see below), whose sum is σ = 100239120. Its totient is φ = 18562720.

The previous prime is 51047587. The next prime is 51047609. The reversal of 51047590 is 9574015.

51047590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 231925 + ... + 232144.

It is an arithmetic number, because the mean of its divisors is an integer number (6264945).

Almost surely, 2^51047590 is an apocalyptic number.

51047590 is a deficient number, since it is larger than the sum of its proper divisors (49191530).

51047590 is a wasteful number, since it uses less digits than its factorization.

51047590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464087.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 51047590 is about 7144.7596180697. The cubic root of 51047590 is about 370.9582901988.

The spelling of 51047590 in words is "fifty-one million, forty-seven thousand, five hundred ninety".