51623032615 has 16 divisors (see below), whose sum is σ = 77233420800. Its totient is φ = 32180591520.

The previous prime is 51623032613. The next prime is 51623032621.

51623032615 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51623032615 - 2¹ = 51623032613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51623032613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67042515 + ... + 67043284.

It is an arithmetic number, because the mean of its divisors is an integer number (4827088800).

Almost surely, 2^51623032615 is an apocalyptic number.

51623032615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51623032615 is a deficient number, since it is larger than the sum of its proper divisors (25610388185).

51623032615 is a wasteful number, since it uses less digits than its factorization.

51623032615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134085822.

The product of its (nonzero) digits is 32400, while the sum is 34.

It can be divided in two parts, 516230 and 32615, that added together give a palindrome (548845).

The spelling of 51623032615 in words is "fifty-one billion, six hundred twenty-three million, thirty-two thousand, six hundred fifteen".