51468858 has 96 divisors (see below), whose sum is σ = 135634560. Its totient is φ = 14346720.

The previous prime is 51468841. The next prime is 51468863. The reversal of 51468858 is 85886415.

51468858 is a `hidden beast` number, since 514 + 6 + 88 + 58 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1255318 + ... + 1255358.

It is an arithmetic number, because the mean of its divisors is an integer number (1412860).

Almost surely, 2^51468858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51468858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67817280).

51468858 is an abundant number, since it is smaller than the sum of its proper divisors (84165702).

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

51468858 is an frugal number, since it uses more digits than its factorization.

51468858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 53 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 51468858 is about 7174.1799531375. The cubic root of 51468858 is about 371.9759349677.

It can be divided in two parts, 51468 and 858, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 51468858 in words is "fifty-one million, four hundred sixty-eight thousand, eight hundred fifty-eight".