51553412 has 12 divisors (see below), whose sum is σ = 90273036. Its totient is φ = 25761120.

The previous prime is 51553409. The next prime is 51553417. The reversal of 51553412 is 21435515.

It can be written as a sum of positive squares in 2 ways, for example, as 3334276 + 48219136 = 1826^2 + 6944^2 .

It is not an unprimeable number, because it can be changed into a prime (51553417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6818 + ... + 12230.

It is an arithmetic number, because the mean of its divisors is an integer number (7522753).

Almost surely, 2^51553412 is an apocalyptic number.

It is an amenable number.

51553412 is a deficient number, since it is larger than the sum of its proper divisors (38719624).

51553412 is a wasteful number, since it uses less digits than its factorization.

51553412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7798 (or 7796 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 51553412 is about 7180.0704731917. The cubic root of 51553412 is about 372.1795198589.

Adding to 51553412 its reverse (21435515), we get a palindrome (72988927).

The spelling of 51553412 in words is "fifty-one million, five hundred fifty-three thousand, four hundred twelve".