51474 has 16 divisors (see below), whose sum is σ = 107712. Its totient is φ = 16368.

The previous prime is 51473. The next prime is 51479. The reversal of 51474 is 47415.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 51474.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 51474.

It is not an unprimeable number, because it can be changed into a prime (51473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49 + ... + 324.

It is an arithmetic number, because the mean of its divisors is an integer number (6732).

2⁵¹⁴⁷⁴ is an apocalyptic number.

51474 is an abundant number, since it is smaller than the sum of its proper divisors (56238).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53856).

51474 is a wasteful number, since it uses less digits than its factorization.

51474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 560, while the sum is 21.

The square root of 51474 is about 226.8788222819. The cubic root of 51474 is about 37.1988321983.

Adding to 51474 its reverse (47415), we get a palindrome (98889).

It can be divided in two parts, 5147 and 4, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 51474 in words is "fifty-one thousand, four hundred seventy-four".