51482609 has 4 divisors (see below), whose sum is σ = 54192240. Its totient is φ = 48772980.

The previous prime is 51482591. The next prime is 51482611. The reversal of 51482609 is 90628415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51482609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51482699) 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, 1354787 + ... + 1354824.

It is an arithmetic number, because the mean of its divisors is an integer number (13548060).

Almost surely, 2^51482609 is an apocalyptic number.

It is an amenable number.

51482609 is a deficient number, since it is larger than the sum of its proper divisors (2709631).

51482609 is a wasteful number, since it uses less digits than its factorization.

51482609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709630.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 51482609 is about 7175.1382565077. The cubic root of 51482609 is about 372.0090591119.

The spelling of 51482609 in words is "fifty-one million, four hundred eighty-two thousand, six hundred nine".