51140766 has 8 divisors (see below), whose sum is σ = 102281544. Its totient is φ = 17046920.

The previous prime is 51140737. The next prime is 51140767. The reversal of 51140766 is 66704115.

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

51140766 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51140767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4261725 + ... + 4261736.

It is an arithmetic number, because the mean of its divisors is an integer number (12785193).

Almost surely, 2^51140766 is an apocalyptic number.

51140766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51140766 is a wasteful number, since it uses less digits than its factorization.

51140766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8523466.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 51140766 is about 7151.2772285795. The cubic root of 51140766 is about 371.1838535805.

The spelling of 51140766 in words is "fifty-one million, one hundred forty thousand, seven hundred sixty-six".