51383474 has 8 divisors (see below), whose sum is σ = 78004080. Its totient is φ = 25382116.

The previous prime is 51383441. The next prime is 51383477. The reversal of 51383474 is 47438315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×51383474³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (51383477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154604 + ... + 154935.

It is an arithmetic number, because the mean of its divisors is an integer number (9750510).

Almost surely, 2^51383474 is an apocalyptic number.

51383474 is a deficient number, since it is larger than the sum of its proper divisors (26620606).

51383474 is a wasteful number, since it uses less digits than its factorization.

51383474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309624.

The product of its digits is 40320, while the sum is 35.

The square root of 51383474 is about 7168.2266984241. The cubic root of 51383474 is about 371.7701252554.

The spelling of 51383474 in words is "fifty-one million, three hundred eighty-three thousand, four hundred seventy-four".