53256066455 has 4 divisors (see below), whose sum is σ = 63907279752. Its totient is φ = 42604853160.

The previous prime is 53256066433. The next prime is 53256066463. The reversal of 53256066455 is 55466065235.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53256066455 - 2¹⁰ = 53256065431 is a prime.

It is a super-2 number, since 2×53256066455² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5325606641 + ... + 5325606650.

It is an arithmetic number, because the mean of its divisors is an integer number (15976819938).

Almost surely, 2^53256066455 is an apocalyptic number.

53256066455 is a deficient number, since it is larger than the sum of its proper divisors (10651213297).

53256066455 is a wasteful number, since it uses less digits than its factorization.

53256066455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10651213296.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 53256066455 in words is "fifty-three billion, two hundred fifty-six million, sixty-six thousand, four hundred fifty-five".