51547252 has 12 divisors (see below), whose sum is σ = 90290340. Its totient is φ = 25750016.

The previous prime is 51547241. The next prime is 51547259. The reversal of 51547252 is 25274515.

It can be written as a sum of positive squares in 2 ways, for example, as 11655396 + 39891856 = 3414^2 + 6316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51547259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427 + ... + 10162.

It is an arithmetic number, because the mean of its divisors is an integer number (7524195).

Almost surely, 2^51547252 is an apocalyptic number.

It is an amenable number.

51547252 is a deficient number, since it is larger than the sum of its proper divisors (38743088).

51547252 is a wasteful number, since it uses less digits than its factorization.

51547252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11810 (or 11808 counting only the distinct ones).

The product of its digits is 14000, while the sum is 31.

The square root of 51547252 is about 7179.6414952280. The cubic root of 51547252 is about 372.1646956402.

It can be divided in two parts, 515472 and 52, that added together give a square (515524 = 718²).

The spelling of 51547252 in words is "fifty-one million, five hundred forty-seven thousand, two hundred fifty-two".