51508084 has 6 divisors (see below), whose sum is σ = 90139154. Its totient is φ = 25754040.

The previous prime is 51508073. The next prime is 51508117. The reversal of 51508084 is 48080515.

It can be written as a sum of positive squares in only one way, i.e., 41088100 + 10419984 = 6410^2 + 3228^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6438507 + ... + 6438514.

Almost surely, 2^51508084 is an apocalyptic number.

It is an amenable number.

51508084 is a deficient number, since it is larger than the sum of its proper divisors (38631070).

51508084 is a wasteful number, since it uses less digits than its factorization.

51508084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12877025 (or 12877023 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 51508084 is about 7176.9132640711. The cubic root of 51508084 is about 372.0704090722.

Adding to 51508084 its reverse (48080515), we get a palindrome (99588599).

The spelling of 51508084 in words is "fifty-one million, five hundred eight thousand, eighty-four".