53788307815 has 16 divisors (see below), whose sum is σ = 72841848480. Its totient is φ = 37769845120.

The previous prime is 53788307767. The next prime is 53788307851. The reversal of 53788307815 is 51870388735.

It is not a de Polignac number, because 53788307815 - 2⁷ = 53788307687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

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, 16859944 + ... + 16863133.

It is an arithmetic number, because the mean of its divisors is an integer number (4552615530).

Almost surely, 2^53788307815 is an apocalyptic number.

53788307815 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53788307815 is a deficient number, since it is larger than the sum of its proper divisors (19053540665).

53788307815 is a wasteful number, since it uses less digits than its factorization.

53788307815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33723122.

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 53788307815 in words is "fifty-three billion, seven hundred eighty-eight million, three hundred seven thousand, eight hundred fifteen".