51699288 has 16 divisors (see below), whose sum is σ = 129248280. Its totient is φ = 17233088.

The previous prime is 51699283. The next prime is 51699293. The reversal of 51699288 is 88299615.

It is a happy number.

51699288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51699283) and next prime (51699293).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51699283) 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 3 ways as a sum of consecutive naturals, for example, 1077045 + ... + 1077092.

Almost surely, 2^51699288 is an apocalyptic number.

It is an amenable number.

51699288 is an abundant number, since it is smaller than the sum of its proper divisors (77548992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51699288 is a wasteful number, since it uses less digits than its factorization.

51699288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154146 (or 2154142 counting only the distinct ones).

The product of its digits is 311040, while the sum is 48.

The square root of 51699288 is about 7190.2216933833. The cubic root of 51699288 is about 372.5302301187.

The spelling of 51699288 in words is "fifty-one million, six hundred ninety-nine thousand, two hundred eighty-eight".