53159197901 has 4 divisors (see below), whose sum is σ = 53289171900. Its totient is φ = 53029223904.

The previous prime is 53159197877. The next prime is 53159197919. The reversal of 53159197901 is 10979195135.

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 48028914025 + 5130283876 = 219155^2 + 71626^2 .

It is a cyclic number.

It is not a de Polignac number, because 53159197901 - 2⁶ = 53159197837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53159197901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53159197981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64986386 + ... + 64987203.

It is an arithmetic number, because the mean of its divisors is an integer number (13322292975).

Almost surely, 2^53159197901 is an apocalyptic number.

It is an amenable number.

53159197901 is a deficient number, since it is larger than the sum of its proper divisors (129973999).

53159197901 is a wasteful number, since it uses less digits than its factorization.

53159197901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129973998.

The product of its (nonzero) digits is 382725, while the sum is 50.

The spelling of 53159197901 in words is "fifty-three billion, one hundred fifty-nine million, one hundred ninety-seven thousand, nine hundred one".