51225950 has 24 divisors (see below), whose sum is σ = 98356800. Its totient is φ = 19828800.

The previous prime is 51225907. The next prime is 51225953. The reversal of 51225950 is 5952215.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51225953) 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, 14975 + ... + 18074.

It is an arithmetic number, because the mean of its divisors is an integer number (4098200).

Almost surely, 2^51225950 is an apocalyptic number.

51225950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51225950 is a deficient number, since it is larger than the sum of its proper divisors (47130850).

51225950 is a wasteful number, since it uses less digits than its factorization.

51225950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33092 (or 33087 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 51225950 is about 7157.2306096702. The cubic root of 51225950 is about 371.3898300675.

It can be divided in two parts, 512 and 25950, that added together give a palindrome (26462).

The spelling of 51225950 in words is "fifty-one million, two hundred twenty-five thousand, nine hundred fifty".