51738764 has 48 divisors (see below), whose sum is σ = 113654016. Its totient is φ = 20020800.

The previous prime is 51738751. The next prime is 51738773. The reversal of 51738764 is 46783715.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52799 + ... + 53769.

It is an arithmetic number, because the mean of its divisors is an integer number (2367792).

Almost surely, 2^51738764 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 51738764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56827008).

51738764 is an abundant number, since it is smaller than the sum of its proper divisors (61915252).

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

51738764 is a wasteful number, since it uses less digits than its factorization.

51738764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1164 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The square root of 51738764 is about 7192.9662865886. The cubic root of 51738764 is about 372.6250235708.

The spelling of 51738764 in words is "fifty-one million, seven hundred thirty-eight thousand, seven hundred sixty-four".