51625274 has 4 divisors (see below), whose sum is σ = 77437914. Its totient is φ = 25812636.

The previous prime is 51625237. The next prime is 51625283. The reversal of 51625274 is 47252615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47252615 = 5 ⋅9450523.

It can be written as a sum of positive squares in only one way, i.e., 30327049 + 21298225 = 5507^2 + 4615^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51625274.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12906317 + ... + 12906320.

Almost surely, 2^51625274 is an apocalyptic number.

51625274 is a deficient number, since it is larger than the sum of its proper divisors (25812640).

51625274 is a wasteful number, since it uses less digits than its factorization.

51625274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25812639.

The product of its digits is 16800, while the sum is 32.

The square root of 51625274 is about 7185.0729989333. The cubic root of 51625274 is about 372.3523706691.

Adding to 51625274 its reverse (47252615), we get a palindrome (98877889).

The spelling of 51625274 in words is "fifty-one million, six hundred twenty-five thousand, two hundred seventy-four".