51895700 has 36 divisors (see below), whose sum is σ = 114172380. Its totient is φ = 20471040.

The previous prime is 51895693. The next prime is 51895729. The reversal of 51895700 is 759815.

It can be written as a sum of positive squares in 6 ways, for example, as 4726276 + 47169424 = 2174^2 + 6868^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3746 + ... + 10854.

It is an arithmetic number, because the mean of its divisors is an integer number (3171455).

Almost surely, 2^51895700 is an apocalyptic number.

51895700 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 51895700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57086190).

51895700 is an abundant number, since it is smaller than the sum of its proper divisors (62276680).

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

51895700 is a wasteful number, since it uses less digits than its factorization.

51895700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196 (or 7189 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 51895700 is about 7203.8670170957. The cubic root of 51895700 is about 373.0013967800.

The spelling of 51895700 in words is "fifty-one million, eight hundred ninety-five thousand, seven hundred".