53563411897 has 4 divisors (see below), whose sum is σ = 55011071716. Its totient is φ = 52115752080.

The previous prime is 53563411883. The next prime is 53563411919. The reversal of 53563411897 is 79811436535.

53563411897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44719137961 + 8844273936 = 211469^2 + 94044^2 .

It is not a de Polignac number, because 53563411897 - 2³⁵ = 19203673529 is a prime.

It is a super-2 number, since 2×53563411897² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53563411877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723829854 + ... + 723829927.

It is an arithmetic number, because the mean of its divisors is an integer number (13752767929).

Almost surely, 2^53563411897 is an apocalyptic number.

It is an amenable number.

53563411897 is a deficient number, since it is larger than the sum of its proper divisors (1447659819).

53563411897 is a wasteful number, since it uses less digits than its factorization.

53563411897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447659818.

The product of its digits is 2721600, while the sum is 52.

The spelling of 53563411897 in words is "fifty-three billion, five hundred sixty-three million, four hundred eleven thousand, eight hundred ninety-seven".