51675750 has 192 divisors, whose sum is σ = 169962624. Its totient is φ = 11059200.

The previous prime is 51675749. The next prime is 51675773. The reversal of 51675750 is 5757615.

51675750 is a `hidden beast` number, since 516 + 75 + 75 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 267654 + ... + 267846.

It is an arithmetic number, because the mean of its divisors is an integer number (885222).

Almost surely, 2^51675750 is an apocalyptic number.

51675750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51675750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84981312).

51675750 is an abundant number, since it is smaller than the sum of its proper divisors (118286874).

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

51675750 is a wasteful number, since it uses less digits than its factorization.

51675750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 51675750 is about 7188.5847007599. The cubic root of 51675750 is about 372.4736855126.

It can be divided in two parts, 51675 and 750, that added together give a palindrome (52425).

The spelling of 51675750 in words is "fifty-one million, six hundred seventy-five thousand, seven hundred fifty".