51787011 has 8 divisors (see below), whose sum is σ = 71430480. Its totient is φ = 33334112.

The previous prime is 51786991. The next prime is 51787033. The reversal of 51787011 is 11078715.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51787011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51787011.

It is not an unprimeable number, because it can be changed into a prime (51787511) 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, 297540 + ... + 297713.

It is an arithmetic number, because the mean of its divisors is an integer number (8928810).

Almost surely, 2^51787011 is an apocalyptic number.

51787011 is a deficient number, since it is larger than the sum of its proper divisors (19643469).

51787011 is a wasteful number, since it uses less digits than its factorization.

51787011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595285.

The product of its (nonzero) digits is 1960, while the sum is 30.

The square root of 51787011 is about 7196.3192675145. The cubic root of 51787011 is about 372.7408133112.

The spelling of 51787011 in words is "fifty-one million, seven hundred eighty-seven thousand, eleven".