51412749 has 8 divisors (see below), whose sum is σ = 68742720. Its totient is φ = 34178976.

The previous prime is 51412723. The next prime is 51412763. The reversal of 51412749 is 94721415.

It is a happy number.

51412749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51412749 - 2⁵ = 51412717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51412799) 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 7 ways as a sum of consecutive naturals, for example, 22792 + ... + 24945.

It is an arithmetic number, because the mean of its divisors is an integer number (8592840).

Almost surely, 2^51412749 is an apocalyptic number.

It is an amenable number.

51412749 is a deficient number, since it is larger than the sum of its proper divisors (17329971).

51412749 is a wasteful number, since it uses less digits than its factorization.

51412749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48099.

The product of its digits is 10080, while the sum is 33.

The square root of 51412749 is about 7170.2684050180. The cubic root of 51412749 is about 371.8407154232.

The spelling of 51412749 in words is "fifty-one million, four hundred twelve thousand, seven hundred forty-nine".