51602552565 has 64 divisors (see below), whose sum is σ = 85809715200. Its totient is φ = 26466003200.

The previous prime is 51602552509. The next prime is 51602552567. The reversal of 51602552565 is 56525520615.

It is not a de Polignac number, because 51602552565 - 2¹⁶ = 51602487029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51602552567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8228251 + ... + 8234519.

It is an arithmetic number, because the mean of its divisors is an integer number (1340776800).

Almost surely, 2^51602552565 is an apocalyptic number.

It is an amenable number.

51602552565 is a deficient number, since it is larger than the sum of its proper divisors (34207162635).

51602552565 is a wasteful number, since it uses less digits than its factorization.

51602552565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538.

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 51602552565 in words is "fifty-one billion, six hundred two million, five hundred fifty-two thousand, five hundred sixty-five".