51135082 has 12 divisors (see below), whose sum is σ = 81480870. Its totient is φ = 24063296.

The previous prime is 51135079. The next prime is 51135083. The reversal of 51135082 is 28053115.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 49716601 + 1418481 = 7051^2 + 1191^2 .

It is a super-2 number, since 2×51135082² = 5229593222293448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51135083) 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, 43657 + ... + 44812.

Almost surely, 2^51135082 is an apocalyptic number.

51135082 is a deficient number, since it is larger than the sum of its proper divisors (30345788).

51135082 is a wasteful number, since it uses less digits than its factorization.

51135082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88505 (or 88488 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 51135082 is about 7150.8798060099. The cubic root of 51135082 is about 371.1701014257.

Adding to 51135082 its reverse (28053115), we get a palindrome (79188197).

The spelling of 51135082 in words is "fifty-one million, one hundred thirty-five thousand, eighty-two".