51565348 has 12 divisors (see below), whose sum is σ = 91133532. Its totient is φ = 25527200.

The previous prime is 51565337. The next prime is 51565357. The reversal of 51565348 is 84356515.

It can be written as a sum of positive squares in 2 ways, for example, as 45454564 + 6110784 = 6742^2 + 2472^2 .

It is a super-2 number, since 2×51565348² = 5317970228722208, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 63415 + ... + 64222.

It is an arithmetic number, because the mean of its divisors is an integer number (7594461).

Almost surely, 2^51565348 is an apocalyptic number.

It is an amenable number.

51565348 is a deficient number, since it is larger than the sum of its proper divisors (39568184).

51565348 is a wasteful number, since it uses less digits than its factorization.

51565348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127742 (or 127740 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 51565348 is about 7180.9016146999. The cubic root of 51565348 is about 372.2082408286.

The spelling of 51565348 in words is "fifty-one million, five hundred sixty-five thousand, three hundred forty-eight".