51616670 has 32 divisors (see below), whose sum is σ = 106569216. Its totient is φ = 17632800.

The previous prime is 51616667. The next prime is 51616679. The reversal of 51616670 is 7661615.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51616679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20585 + ... + 22955.

It is an arithmetic number, because the mean of its divisors is an integer number (3330288).

Almost surely, 2^51616670 is an apocalyptic number.

51616670 is an abundant number, since it is smaller than the sum of its proper divisors (54952546).

51616670 is a wasteful number, since it uses less digits than its factorization.

51616670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 51616670 is about 7184.4742326770. The cubic root of 51616670 is about 372.3316837875.

The spelling of 51616670 in words is "fifty-one million, six hundred sixteen thousand, six hundred seventy".