51848766 has 48 divisors (see below), whose sum is σ = 116473344. Its totient is φ = 16656192.

The previous prime is 51848747. The next prime is 51848767. The reversal of 51848766 is 66784815.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51848767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84276 + ... + 84888.

It is an arithmetic number, because the mean of its divisors is an integer number (2426528).

Almost surely, 2^51848766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51848766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58236672).

51848766 is an abundant number, since it is smaller than the sum of its proper divisors (64624578).

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

51848766 is a wasteful number, since it uses less digits than its factorization.

51848766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 782 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 51848766 is about 7200.6087242677. The cubic root of 51848766 is about 372.8889165054. Note that the first 3 decimals are identical.

It can be divided in two parts, 518 and 48766, that added together give a square (49284 = 222²).

The spelling of 51848766 in words is "fifty-one million, eight hundred forty-eight thousand, seven hundred sixty-six".