51049512 has 96 divisors (see below), whose sum is σ = 149385600. Its totient is φ = 15700608.

The previous prime is 51049501. The next prime is 51049517. The reversal of 51049512 is 21594015.

It is not an unprimeable number, because it can be changed into a prime (51049517) 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 23 ways as a sum of consecutive naturals, for example, 47493 + ... + 48555.

It is an arithmetic number, because the mean of its divisors is an integer number (1556100).

Almost surely, 2^51049512 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 51049512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74692800).

51049512 is an abundant number, since it is smaller than the sum of its proper divisors (98336088).

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

51049512 is a wasteful number, since it uses less digits than its factorization.

51049512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 51049512 is about 7144.8941209790. The cubic root of 51049512 is about 370.9629458080.

The spelling of 51049512 in words is "fifty-one million, forty-nine thousand, five hundred twelve".