51962500 has 36 divisors (see below), whose sum is σ = 113688036. Its totient is φ = 20780000.

The previous prime is 51962483. The next prime is 51962501. The reversal of 51962500 is 526915.

It can be written as a sum of positive squares in 6 ways, for example, as 43771456 + 8191044 = 6616^2 + 2862^2 .

It is not an unprimeable number, because it can be changed into a prime (51962501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10422 + ... + 14578.

It is an arithmetic number, because the mean of its divisors is an integer number (3158001).

Almost surely, 2^51962500 is an apocalyptic number.

51962500 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 51962500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56844018).

51962500 is an abundant number, since it is smaller than the sum of its proper divisors (61725536).

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

51962500 is an equidigital number, since it uses as much as digits as its factorization.

51962500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186 (or 4164 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 51962500 is about 7208.5019248107. The cubic root of 51962500 is about 373.1613702790.

The spelling of 51962500 in words is "fifty-one million, nine hundred sixty-two thousand, five hundred".