51458268 has 48 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 15960384.

The previous prime is 51458261. The next prime is 51458299. The reversal of 51458268 is 86285415.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51458261) 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 15 ways as a sum of consecutive naturals, for example, 7693 + ... + 12731.

It is an arithmetic number, because the mean of its divisors is an integer number (2681280).

Almost surely, 2^51458268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51458268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64350720).

51458268 is an abundant number, since it is smaller than the sum of its proper divisors (77243172).

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

51458268 is a wasteful number, since it uses less digits than its factorization.

51458268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106 (or 5104 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 51458268 is about 7173.4418517194. The cubic root of 51458268 is about 371.9504211877.

The spelling of 51458268 in words is "fifty-one million, four hundred fifty-eight thousand, two hundred sixty-eight".