53905396897 has 4 divisors (see below), whose sum is σ = 58805887536. Its totient is φ = 49004906260.

The previous prime is 53905396847. The next prime is 53905396957. The reversal of 53905396897 is 79869350935.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53905396897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53905396807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2450245303 + ... + 2450245324.

It is an arithmetic number, because the mean of its divisors is an integer number (14701471884).

Almost surely, 2^53905396897 is an apocalyptic number.

It is an amenable number.

53905396897 is a deficient number, since it is larger than the sum of its proper divisors (4900490639).

53905396897 is a wasteful number, since it uses less digits than its factorization.

53905396897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900490638.

The product of its (nonzero) digits is 55112400, while the sum is 64.

The spelling of 53905396897 in words is "fifty-three billion, nine hundred five million, three hundred ninety-six thousand, eight hundred ninety-seven".