53644697803 has 16 divisors (see below), whose sum is σ = 58022987904. Its totient is φ = 49402792960.

The previous prime is 53644697767. The next prime is 53644697833. The reversal of 53644697803 is 30879644635.

It is a cyclic number.

It is not a de Polignac number, because 53644697803 - 2¹³ = 53644689611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53644697833) 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 15 ways as a sum of consecutive naturals, for example, 6049593 + ... + 6058453.

It is an arithmetic number, because the mean of its divisors is an integer number (3626436744).

Almost surely, 2^53644697803 is an apocalyptic number.

53644697803 is a deficient number, since it is larger than the sum of its proper divisors (4378290101).

53644697803 is a wasteful number, since it uses less digits than its factorization.

53644697803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16502.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 53644697803 in words is "fifty-three billion, six hundred forty-four million, six hundred ninety-seven thousand, eight hundred three".