51536052 has 18 divisors (see below), whose sum is σ = 130271778. Its totient is φ = 17178672.

The previous prime is 51536047. The next prime is 51536053. The reversal of 51536052 is 25063515.

51536052 is a `hidden beast` number, since 5 + 1 + 53 + 605 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31069476 + 20466576 = 5574^2 + 4524^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51536053) 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, 715743 + ... + 715814.

It is an arithmetic number, because the mean of its divisors is an integer number (7237321).

Almost surely, 2^51536052 is an apocalyptic number.

It is an amenable number.

51536052 is an abundant number, since it is smaller than the sum of its proper divisors (78735726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51536052 is a wasteful number, since it uses less digits than its factorization.

51536052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431567 (or 1431562 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 51536052 is about 7178.8614696204. The cubic root of 51536052 is about 372.1377394893.

Adding to 51536052 its reverse (25063515), we get a palindrome (76599567).

The spelling of 51536052 in words is "fifty-one million, five hundred thirty-six thousand, fifty-two".