53055608381 has 4 divisors (see below), whose sum is σ = 53068188000. Its totient is φ = 53043028764.

The previous prime is 53055608339. The next prime is 53055608423. The reversal of 53055608381 is 18380655035.

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 an interprime number because it is at equal distance from previous prime (53055608339) and next prime (53055608423).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53055608381 is a prime.

It is a super-2 number, since 2×53055608381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53055608321) 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 3 ways as a sum of consecutive naturals, for example, 6283481 + ... + 6291918.

It is an arithmetic number, because the mean of its divisors is an integer number (13267047000).

Almost surely, 2^53055608381 is an apocalyptic number.

It is an amenable number.

53055608381 is a deficient number, since it is larger than the sum of its proper divisors (12579619).

53055608381 is a wasteful number, since it uses less digits than its factorization.

53055608381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12579618.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 53055608381 in words is "fifty-three billion, fifty-five million, six hundred eight thousand, three hundred eighty-one".