51087276 has 54 divisors (see below), whose sum is σ = 136326372. Its totient is φ = 16128720.

The previous prime is 51087259. The next prime is 51087313. The reversal of 51087276 is 67278015.

51087276 is a `hidden beast` number, since 510 + 8 + 72 + 76 = 666.

51087276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51087276.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 11031 + ... + 14961.

Almost surely, 2^51087276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51087276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68163186).

51087276 is an abundant number, since it is smaller than the sum of its proper divisors (85239096).

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

51087276 is a wasteful number, since it uses less digits than its factorization.

51087276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 51087276 is about 7147.5363587743. The cubic root of 51087276 is about 371.0543968402.

The spelling of 51087276 in words is "fifty-one million, eighty-seven thousand, two hundred seventy-six".