51763140 has 144 divisors (see below), whose sum is σ = 184556736. Its totient is φ = 11577600.

The previous prime is 51763123. The next prime is 51763169. The reversal of 51763140 is 4136715.

51763140 is a `hidden beast` number, since 517 + 6 + 3 + 140 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24735 + ... + 26745.

It is an arithmetic number, because the mean of its divisors is an integer number (1281644).

Almost surely, 2^51763140 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 51763140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92278368).

51763140 is an abundant number, since it is smaller than the sum of its proper divisors (132793596).

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

51763140 is a wasteful number, since it uses less digits than its factorization.

51763140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 51763140 is about 7194.6605201357. The cubic root of 51763140 is about 372.6835334177.

Adding to 51763140 its reverse (4136715), we get a palindrome (55899855).

The spelling of 51763140 in words is "fifty-one million, seven hundred sixty-three thousand, one hundred forty".