51745274 has 12 divisors (see below), whose sum is σ = 90290394. Its totient is φ = 22176504.

The previous prime is 51745273. The next prime is 51745279. The reversal of 51745274 is 47254715.

It can be written as a sum of positive squares in only one way, i.e., 34164025 + 17581249 = 5845^2 + 4193^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51745273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263909 + ... + 264104.

Almost surely, 2^51745274 is an apocalyptic number.

51745274 is a deficient number, since it is larger than the sum of its proper divisors (38545120).

51745274 is a wasteful number, since it uses less digits than its factorization.

51745274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528029 (or 528022 counting only the distinct ones).

The product of its digits is 39200, while the sum is 35.

The square root of 51745274 is about 7193.4187977623. The cubic root of 51745274 is about 372.6406513579.

Adding to 51745274 its reverse (47254715), we get a palindrome (98999989).

The spelling of 51745274 in words is "fifty-one million, seven hundred forty-five thousand, two hundred seventy-four".