53788332513 has 4 divisors (see below), whose sum is σ = 71717776688. Its totient is φ = 35858888340.

The previous prime is 53788332491. The next prime is 53788332557. The reversal of 53788332513 is 31523388735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53788332513 - 2⁶ = 53788332449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53788332583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8964722083 + ... + 8964722088.

It is an arithmetic number, because the mean of its divisors is an integer number (17929444172).

Almost surely, 2^53788332513 is an apocalyptic number.

It is an amenable number.

53788332513 is a deficient number, since it is larger than the sum of its proper divisors (17929444175).

53788332513 is a wasteful number, since it uses less digits than its factorization.

53788332513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17929444174.

The product of its digits is 1814400, while the sum is 48.

The spelling of 53788332513 in words is "fifty-three billion, seven hundred eighty-eight million, three hundred thirty-two thousand, five hundred thirteen".