51747450 has 96 divisors (see below), whose sum is σ = 137610240. Its totient is φ = 12830400.

The previous prime is 51747433. The next prime is 51747457. The reversal of 51747450 is 5474715.

It is not an unprimeable number, because it can be changed into a prime (51747457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190815 + ... + 191085.

It is an arithmetic number, because the mean of its divisors is an integer number (1433440).

Almost surely, 2^51747450 is an apocalyptic number.

51747450 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 51747450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68805120).

51747450 is an abundant number, since it is smaller than the sum of its proper divisors (85862790).

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

51747450 is a wasteful number, since it uses less digits than its factorization.

51747450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 51747450 is about 7193.5700455337. The cubic root of 51747450 is about 372.6458747315.

The spelling of 51747450 in words is "fifty-one million, seven hundred forty-seven thousand, four hundred fifty".