53815005009 has 12 divisors (see below), whose sum is σ = 79199442036. Its totient is φ = 35199751392.

The previous prime is 53815004927. The next prime is 53815005047. The reversal of 53815005009 is 90050051835.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24754302225 + 29060702784 = 157335^2 + 170472^2 .

It is not a de Polignac number, because 53815005009 - 2¹³ = 53814996817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53815000009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56409382 + ... + 56410335.

It is an arithmetic number, because the mean of its divisors is an integer number (6599953503).

Almost surely, 2^53815005009 is an apocalyptic number.

It is an amenable number.

53815005009 is a deficient number, since it is larger than the sum of its proper divisors (25384437027).

53815005009 is a wasteful number, since it uses less digits than its factorization.

53815005009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112819776 (or 112819773 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 53815005009 in words is "fifty-three billion, eight hundred fifteen million, five thousand, nine".