51925900 has 72 divisors (see below), whose sum is σ = 123585840. Its totient is φ = 18819840.

The previous prime is 51925889. The next prime is 51925901. The reversal of 51925900 is 952915.

It is not an unprimeable number, because it can be changed into a prime (51925901) 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 23 ways as a sum of consecutive naturals, for example, 76362 + ... + 77038.

It is an arithmetic number, because the mean of its divisors is an integer number (1716470).

Almost surely, 2^51925900 is an apocalyptic number.

51925900 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 51925900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61792920).

51925900 is an abundant number, since it is smaller than the sum of its proper divisors (71659940).

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

51925900 is a wasteful number, since it uses less digits than its factorization.

51925900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 51925900 is about 7205.9628086745. The cubic root of 51925900 is about 373.0737371203.

It can be divided in two parts, 51925 and 900, that added together give a palindrome (52825).

The spelling of 51925900 in words is "fifty-one million, nine hundred twenty-five thousand, nine hundred".