51771888 has 60 divisors (see below), whose sum is σ = 165591088. Its totient is φ = 14791680.

The previous prime is 51771883. The next prime is 51771899. The reversal of 51771888 is 88817715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51771883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24673 + ... + 26688.

Almost surely, 2^51771888 is an apocalyptic number.

It is an amenable number.

51771888 is an abundant number, since it is smaller than the sum of its proper divisors (113819200).

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

51771888 is a wasteful number, since it uses less digits than its factorization.

51771888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51382 (or 51373 counting only the distinct ones).

The product of its digits is 125440, while the sum is 45.

The square root of 51771888 is about 7195.2684453049. The cubic root of 51771888 is about 372.7045268112.

The spelling of 51771888 in words is "fifty-one million, seven hundred seventy-one thousand, eight hundred eighty-eight".