53408239549 has 32 divisors (see below), whose sum is σ = 63919570176. Its totient is φ = 43672711680.

The previous prime is 53408239543. The next prime is 53408239559. The reversal of 53408239549 is 94593280435.

It is a cyclic number.

It is not a de Polignac number, because 53408239549 - 2⁵ = 53408239517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53408239496 and 53408239505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53408239543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4664059 + ... + 4675495.

It is an arithmetic number, because the mean of its divisors is an integer number (1997486568).

Almost surely, 2^53408239549 is an apocalyptic number.

It is an amenable number.

53408239549 is a deficient number, since it is larger than the sum of its proper divisors (10511330627).

53408239549 is a wasteful number, since it uses less digits than its factorization.

53408239549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 53408239549 in words is "fifty-three billion, four hundred eight million, two hundred thirty-nine thousand, five hundred forty-nine".