51483969 has 6 divisors (see below), whose sum is σ = 74365746. Its totient is φ = 34322640.

The previous prime is 51483953. The next prime is 51483997. The reversal of 51483969 is 96938415.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36180225 + 15303744 = 6015^2 + 3912^2 .

It is not a de Polignac number, because 51483969 - 2⁴ = 51483953 is a prime.

It is a super-2 number, since 2×51483969² = 5301198127985922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51483569) 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, 2860212 + ... + 2860229.

It is an arithmetic number, because the mean of its divisors is an integer number (12394291).

Almost surely, 2^51483969 is an apocalyptic number.

It is an amenable number.

51483969 is a deficient number, since it is larger than the sum of its proper divisors (22881777).

51483969 is a wasteful number, since it uses less digits than its factorization.

51483969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5720447 (or 5720444 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 51483969 is about 7175.2330275748. The cubic root of 51483969 is about 372.0123348321.

The spelling of 51483969 in words is "fifty-one million, four hundred eighty-three thousand, nine hundred sixty-nine".