51613064 has 8 divisors (see below), whose sum is σ = 96774510. Its totient is φ = 25806528.

The previous prime is 51613057. The next prime is 51613091. The reversal of 51613064 is 46031615.

It can be written as a sum of positive squares in only one way, i.e., 34456900 + 17156164 = 5870^2 + 4142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225809 + ... + 3225824.

Almost surely, 2^51613064 is an apocalyptic number.

It is an amenable number.

51613064 is a deficient number, since it is larger than the sum of its proper divisors (45161446).

51613064 is a wasteful number, since it uses less digits than its factorization.

51613064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451639 (or 6451635 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 51613064 is about 7184.2232704726. The cubic root of 51613064 is about 372.3230130788.

Adding to 51613064 its reverse (46031615), we get a palindrome (97644679).

The spelling of 51613064 in words is "fifty-one million, six hundred thirteen thousand, sixty-four".