51613448 has 16 divisors (see below), whose sum is σ = 96997500. Its totient is φ = 25747456.

The previous prime is 51613447. The next prime is 51613453. The reversal of 51613448 is 84431615.

It can be written as a sum of positive squares in 2 ways, for example, as 51008164 + 605284 = 7142^2 + 778^2 .

It is not an unprimeable number, because it can be changed into a prime (51613447) 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, 3593 + ... + 10776.

Almost surely, 2^51613448 is an apocalyptic number.

It is an amenable number.

51613448 is a deficient number, since it is larger than the sum of its proper divisors (45384052).

51613448 is a wasteful number, since it uses less digits than its factorization.

51613448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14824 (or 14820 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 51613448 is about 7184.2499956502. The cubic root of 51613448 is about 372.3239364347.

The spelling of 51613448 in words is "fifty-one million, six hundred thirteen thousand, four hundred forty-eight".