51523755732515 has 16 divisors (see below), whose sum is σ = 67449643176960. Its totient is φ = 37471620714720.

The previous prime is 51523755732503. The next prime is 51523755732521.

51523755732515 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51523755732515 - 2¹⁴ = 51523755716131 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8204756 + ... + 13052414.

It is an arithmetic number, because the mean of its divisors is an integer number (4215602698560).

Almost surely, 2^{51523755732515} is an apocalyptic number.

51523755732515 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51523755732515 is a deficient number, since it is larger than the sum of its proper divisors (15925887444445).

51523755732515 is a wasteful number, since it uses less digits than its factorization.

51523755732515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040922.

The product of its digits is 27562500, while the sum is 56.

The spelling of 51523755732515 in words is "fifty-one trillion, five hundred twenty-three billion, seven hundred fifty-five million, seven hundred thirty-two thousand, five hundred fifteen".