51807007 has 12 divisors (see below), whose sum is σ = 62898160. Its totient is φ = 41792256.

The previous prime is 51807001. The next prime is 51807011. The reversal of 51807007 is 70070815.

It is a happy number.

51807007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51807007 - 2¹¹ = 51804959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51807001) 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 11 ways as a sum of consecutive naturals, for example, 10782 + ... + 14827.

Almost surely, 2^51807007 is an apocalyptic number.

51807007 is a deficient number, since it is larger than the sum of its proper divisors (11091153).

51807007 is a wasteful number, since it uses less digits than its factorization.

51807007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25650 (or 25633 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 51807007 is about 7197.7084547792. The cubic root of 51807007 is about 372.7887813639.

The spelling of 51807007 in words is "fifty-one million, eight hundred seven thousand, seven".