51538082 has 4 divisors (see below), whose sum is σ = 77307126. Its totient is φ = 25769040.

The previous prime is 51538063. The next prime is 51538111. The reversal of 51538082 is 28083515.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 46389721 + 5148361 = 6811^2 + 2269^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12884519 + ... + 12884522.

Almost surely, 2^51538082 is an apocalyptic number.

51538082 is a deficient number, since it is larger than the sum of its proper divisors (25769044).

51538082 is a wasteful number, since it uses less digits than its factorization.

51538082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25769043.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 51538082 is about 7179.0028555503. The cubic root of 51538082 is about 372.1426255814.

The spelling of 51538082 in words is "fifty-one million, five hundred thirty-eight thousand, eighty-two".