51416500 has 96 divisors (see below), whose sum is σ = 124540416. Its totient is φ = 18444800.

The previous prime is 51416471. The next prime is 51416503. The reversal of 51416500 is 561415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51416503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195369 + ... + 195631.

It is an arithmetic number, because the mean of its divisors is an integer number (1297296).

Almost surely, 2^51416500 is an apocalyptic number.

51416500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51416500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62270208).

51416500 is an abundant number, since it is smaller than the sum of its proper divisors (73123916).

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

51416500 is a wasteful number, since it uses less digits than its factorization.

51416500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 51416500 is about 7170.5299664669. The cubic root of 51416500 is about 371.8497581907.

Adding to 51416500 its reverse (561415), we get a palindrome (51977915).

The spelling of 51416500 in words is "fifty-one million, four hundred sixteen thousand, five hundred".