53256103561 has 8 divisors (see below), whose sum is σ = 56122274880. Its totient is φ = 50396254128.

The previous prime is 53256103543. The next prime is 53256103583. The reversal of 53256103561 is 16530165235.

53256103561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53256103561 - 2²³ = 53247714953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53256103561.

It is not an unprimeable number, because it can be changed into a prime (53256103501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1563166 + ... + 1596871.

It is an arithmetic number, because the mean of its divisors is an integer number (7015284360).

Almost surely, 2^53256103561 is an apocalyptic number.

It is an amenable number.

53256103561 is a deficient number, since it is larger than the sum of its proper divisors (2866171319).

53256103561 is a wasteful number, since it uses less digits than its factorization.

53256103561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160943.

The product of its (nonzero) digits is 81000, while the sum is 37.

Adding to 53256103561 its reverse (16530165235), we get a palindrome (69786268796).

The spelling of 53256103561 in words is "fifty-three billion, two hundred fifty-six million, one hundred three thousand, five hundred sixty-one".