53916625513 has 4 divisors (see below), whose sum is σ = 54933920388. Its totient is φ = 52899330640.

The previous prime is 53916625487. The next prime is 53916625517. The reversal of 53916625513 is 31552661935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36682974784 + 17233650729 = 191528^2 + 131277^2 .

It is a cyclic number.

It is not a de Polignac number, because 53916625513 - 2⁵ = 53916625481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53916625517) 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 3 ways as a sum of consecutive naturals, for example, 508647358 + ... + 508647463.

It is an arithmetic number, because the mean of its divisors is an integer number (13733480097).

Almost surely, 2^53916625513 is an apocalyptic number.

53916625513 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

53916625513 is a deficient number, since it is larger than the sum of its proper divisors (1017294875).

53916625513 is a wasteful number, since it uses less digits than its factorization.

53916625513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017294874.

The product of its digits is 729000, while the sum is 46.

The spelling of 53916625513 in words is "fifty-three billion, nine hundred sixteen million, six hundred twenty-five thousand, five hundred thirteen".