51625052615 has 16 divisors (see below), whose sum is σ = 64755661248. Its totient is φ = 39435872256.

The previous prime is 51625052593. The next prime is 51625052621.

51625052615 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 51625052615 - 2²⁰ = 51624004039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 322652 + ... + 455361.

It is an arithmetic number, because the mean of its divisors is an integer number (4047228828).

Almost surely, 2^51625052615 is an apocalyptic number.

51625052615 is a deficient number, since it is larger than the sum of its proper divisors (13130608633).

51625052615 is a wasteful number, since it uses less digits than its factorization.

51625052615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778618.

The product of its (nonzero) digits is 90000, while the sum is 38.

It can be divided in two parts, 516250 and 52615, that added together give a palindrome (568865).

The spelling of 51625052615 in words is "fifty-one billion, six hundred twenty-five million, fifty-two thousand, six hundred fifteen".