51048858 has 128 divisors (see below), whose sum is σ = 134369280. Its totient is φ = 12579840.

The previous prime is 51048857. The next prime is 51048871. The reversal of 51048858 is 85884015.

51048858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51048853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 718963 + ... + 719033.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 2^51048858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51048858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67184640).

51048858 is an abundant number, since it is smaller than the sum of its proper divisors (83320422).

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

51048858 is a wasteful number, since it uses less digits than its factorization.

51048858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172.

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 51048858 is about 7144.8483538841. The cubic root of 51048858 is about 370.9613616544.

The spelling of 51048858 in words is "fifty-one million, forty-eight thousand, eight hundred fifty-eight".