51159651 has 8 divisors (see below), whose sum is σ = 68465664. Its totient is φ = 33980040.

The previous prime is 51159649. The next prime is 51159673. The reversal of 51159651 is 15695115.

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

It is not a de Polignac number, because 51159651 - 2¹ = 51159649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51159601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30651 + ... + 32276.

It is an arithmetic number, because the mean of its divisors is an integer number (8558208).

Almost surely, 2^51159651 is an apocalyptic number.

51159651 is a deficient number, since it is larger than the sum of its proper divisors (17306013).

51159651 is a wasteful number, since it uses less digits than its factorization.

51159651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63201.

The product of its digits is 6750, while the sum is 33.

The square root of 51159651 is about 7152.5975002093. The cubic root of 51159651 is about 371.2295375814.

The spelling of 51159651 in words is "fifty-one million, one hundred fifty-nine thousand, six hundred fifty-one".