51182748 has 36 divisors (see below), whose sum is σ = 130378248. Its totient is φ = 16929120.

The previous prime is 51182741. The next prime is 51182759. The reversal of 51182748 is 84728115.

It is a tau number, because it is divible by the number of its divisors (36).

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 (51182741) 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, 711 + ... + 10142.

It is an arithmetic number, because the mean of its divisors is an integer number (3621618).

Almost surely, 2^51182748 is an apocalyptic number.

It is an amenable number.

51182748 is an abundant number, since it is smaller than the sum of its proper divisors (79195500).

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

51182748 is a wasteful number, since it uses less digits than its factorization.

51182748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10994 (or 10989 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 51182748 is about 7154.2119062829. The cubic root of 51182748 is about 371.2853953941.

The spelling of 51182748 in words is "fifty-one million, one hundred eighty-two thousand, seven hundred forty-eight".