51803494 has 16 divisors (see below), whose sum is σ = 80077248. Its totient is φ = 25121152.

The previous prime is 51803473. The next prime is 51803503. The reversal of 51803494 is 49430815.

It is a super-3 number, since 3×51803494³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

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, 8184 + ... + 13060.

It is an arithmetic number, because the mean of its divisors is an integer number (5004828).

Almost surely, 2^51803494 is an apocalyptic number.

51803494 is a deficient number, since it is larger than the sum of its proper divisors (28273754).

51803494 is a wasteful number, since it uses less digits than its factorization.

51803494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 51803494 is about 7197.4644146394. The cubic root of 51803494 is about 372.7803549838.

The spelling of 51803494 in words is "fifty-one million, eight hundred three thousand, four hundred ninety-four".