51360666 has 32 divisors (see below), whose sum is σ = 118158720. Its totient is φ = 14579136.

The previous prime is 51360643. The next prime is 51360677. The reversal of 51360666 is 66606315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2700 + ... + 10488.

It is an arithmetic number, because the mean of its divisors is an integer number (3692460).

Almost surely, 2^51360666 is an apocalyptic number.

51360666 is an abundant number, since it is smaller than the sum of its proper divisors (66798054).

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

51360666 is a wasteful number, since it uses less digits than its factorization.

51360666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7958.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 51360666 is about 7166.6356123358. The cubic root of 51360666 is about 371.7151102395.

The spelling of 51360666 in words is "fifty-one million, three hundred sixty thousand, six hundred sixty-six".