51862900 has 72 divisors (see below), whose sum is σ = 117554976. Its totient is φ = 19843200.

The previous prime is 51862883. The next prime is 51862901. The reversal of 51862900 is 926815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51862901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 395835 + ... + 395965.

It is an arithmetic number, because the mean of its divisors is an integer number (1632708).

Almost surely, 2^51862900 is an apocalyptic number.

51862900 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 51862900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58777488).

51862900 is an abundant number, since it is smaller than the sum of its proper divisors (65692076).

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

51862900 is a wasteful number, since it uses less digits than its factorization.

51862900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 51862900 is about 7201.5901021927. The cubic root of 51862900 is about 372.9227966631.

The spelling of 51862900 in words is "fifty-one million, eight hundred sixty-two thousand, nine hundred".