51101807 has 8 divisors (see below), whose sum is σ = 51561600. Its totient is φ = 50644440.

The previous prime is 51101803. The next prime is 51101851. The reversal of 51101807 is 70810115.

51101807 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 cyclic number.

It is not a de Polignac number, because 51101807 - 2² = 51101803 is a prime.

It is a super-2 number, since 2×51101807² = 5222789357330498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51101803) 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 7 ways as a sum of consecutive naturals, for example, 97448 + ... + 97970.

It is an arithmetic number, because the mean of its divisors is an integer number (6445200).

Almost surely, 2^51101807 is an apocalyptic number.

51101807 is a deficient number, since it is larger than the sum of its proper divisors (459793).

51101807 is a wasteful number, since it uses less digits than its factorization.

51101807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 51101807 is about 7148.5527906003. The cubic root of 51101807 is about 371.0895737684.

The spelling of 51101807 in words is "fifty-one million, one hundred one thousand, eight hundred seven".