51029748 has 144 divisors (see below), whose sum is σ = 165110400. Its totient is φ = 12902400.

The previous prime is 51029747. The next prime is 51029773. The reversal of 51029748 is 84792015.

51029748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51029747) 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 47 ways as a sum of consecutive naturals, for example, 113428 + ... + 113876.

It is an arithmetic number, because the mean of its divisors is an integer number (1146600).

Almost surely, 2^51029748 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 51029748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82555200).

51029748 is an abundant number, since it is smaller than the sum of its proper divisors (114080652).

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

51029748 is a wasteful number, since it uses less digits than its factorization.

51029748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 51029748 is about 7143.5109015105. The cubic root of 51029748 is about 370.9150664210.

The spelling of 51029748 in words is "fifty-one million, twenty-nine thousand, seven hundred forty-eight".