51493225 has 12 divisors (see below), whose sum is σ = 72973504. Its totient is φ = 35309520.

The previous prime is 51493223. The next prime is 51493229. The reversal of 51493225 is 52239415.

51493225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51493225 - 2¹ = 51493223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51493223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146949 + ... + 147298.

Almost surely, 2^51493225 is an apocalyptic number.

It is an amenable number.

51493225 is a deficient number, since it is larger than the sum of its proper divisors (21480279).

51493225 is a wasteful number, since it uses less digits than its factorization.

51493225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294264 (or 294259 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 51493225 is about 7175.8779950610. The cubic root of 51493225 is about 372.0346274661.

It can be divided in two parts, 514 and 93225, that added together give a palindrome (93739).

The spelling of 51493225 in words is "fifty-one million, four hundred ninety-three thousand, two hundred twenty-five".