51651093 has 8 divisors (see below), whose sum is σ = 74165728. Its totient is φ = 31785264.

The previous prime is 51651023. The next prime is 51651109. The reversal of 51651093 is 39015615.

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

It is not a de Polignac number, because 51651093 - 2¹⁰ = 51650069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51651093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51651013) 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, 662155 + ... + 662232.

It is an arithmetic number, because the mean of its divisors is an integer number (9270716).

Almost surely, 2^51651093 is an apocalyptic number.

It is an amenable number.

51651093 is a deficient number, since it is larger than the sum of its proper divisors (22514635).

51651093 is a wasteful number, since it uses less digits than its factorization.

51651093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324403.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 51651093 is about 7186.8694853879. The cubic root of 51651093 is about 372.4144343501.

The spelling of 51651093 in words is "fifty-one million, six hundred fifty-one thousand, ninety-three".