51780670 has 8 divisors (see below), whose sum is σ = 93205224. Its totient is φ = 20712264.

The previous prime is 51780667. The next prime is 51780679. The reversal of 51780670 is 7608715.

51780670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51780679) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2589024 + ... + 2589043.

It is an arithmetic number, because the mean of its divisors is an integer number (11650653).

Almost surely, 2^51780670 is an apocalyptic number.

51780670 is a deficient number, since it is larger than the sum of its proper divisors (41424554).

51780670 is a wasteful number, since it uses less digits than its factorization.

51780670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178074.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 51780670 is about 7195.8786815788. The cubic root of 51780670 is about 372.7255994192.

The spelling of 51780670 in words is "fifty-one million, seven hundred eighty thousand, six hundred seventy".