51894458 has 16 divisors (see below), whose sum is σ = 97049664. Its totient is φ = 20218560.

The previous prime is 51894443. The next prime is 51894481. The reversal of 51894458 is 85449815.

It is a super-2 number, since 2×51894458² = 5386069542227528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168335 + ... + 168642.

It is an arithmetic number, because the mean of its divisors is an integer number (6065604).

Almost surely, 2^51894458 is an apocalyptic number.

51894458 is a deficient number, since it is larger than the sum of its proper divisors (45155206).

51894458 is a wasteful number, since it uses less digits than its factorization.

51894458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336997.

The product of its digits is 230400, while the sum is 44.

The square root of 51894458 is about 7203.7808128787. The cubic root of 51894458 is about 372.9984211229.

The spelling of 51894458 in words is "fifty-one million, eight hundred ninety-four thousand, four hundred fifty-eight".