51268450 has 48 divisors (see below), whose sum is σ = 99134280. Its totient is φ = 19712000.

The previous prime is 51268423. The next prime is 51268457. The reversal of 51268450 is 5486215.

It can be written as a sum of positive squares in 12 ways, for example, as 588289 + 50680161 = 767^2 + 7119^2 .

It is not an unprimeable number, because it can be changed into a prime (51268457) 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, 182310 + ... + 182590.

Almost surely, 2^51268450 is an apocalyptic number.

51268450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51268450 is a deficient number, since it is larger than the sum of its proper divisors (47865830).

51268450 is a wasteful number, since it uses less digits than its factorization.

51268450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 51268450 is about 7160.1990195804. The cubic root of 51268450 is about 371.4925104776.

It can be divided in two parts, 512 and 68450, that multiplied together give a square (35046400 = 5920²).

The spelling of 51268450 in words is "fifty-one million, two hundred sixty-eight thousand, four hundred fifty".