51330070 has 16 divisors (see below), whose sum is σ = 100793808. Its totient is φ = 18665440.

The previous prime is 51330061. The next prime is 51330101. The reversal of 51330070 is 7003315.

51330070 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, 233209 + ... + 233428.

It is an arithmetic number, because the mean of its divisors is an integer number (6299613).

Almost surely, 2^51330070 is an apocalyptic number.

51330070 is a deficient number, since it is larger than the sum of its proper divisors (49463738).

51330070 is a wasteful number, since it uses less digits than its factorization.

51330070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466655.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 51330070 is about 7164.5006804382. The cubic root of 51330070 is about 371.6412842589.

Adding to 51330070 its reverse (7003315), we get a palindrome (58333385).

The spelling of 51330070 in words is "fifty-one million, three hundred thirty thousand, seventy".