51700067 has 8 divisors (see below), whose sum is σ = 54362880. Its totient is φ = 49071880.

The previous prime is 51700013. The next prime is 51700073. The reversal of 51700067 is 76000715.

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

It is not a de Polignac number, because 51700067 - 2⁶ = 51700003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51700087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5567 + ... + 11592.

It is an arithmetic number, because the mean of its divisors is an integer number (6795360).

Almost surely, 2^51700067 is an apocalyptic number.

51700067 is a deficient number, since it is larger than the sum of its proper divisors (2662813).

51700067 is a wasteful number, since it uses less digits than its factorization.

51700067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17313.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 51700067 is about 7190.2758639707. The cubic root of 51700067 is about 372.5321011928.

The spelling of 51700067 in words is "fifty-one million, seven hundred thousand, sixty-seven".