53531613901 has 4 divisors (see below), whose sum is σ = 54409181404. Its totient is φ = 52654046400.

The previous prime is 53531613881. The next prime is 53531613931. The reversal of 53531613901 is 10931613535.

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 10910011401 + 42621602500 = 104451^2 + 206450^2 .

It is a cyclic number.

It is not a de Polignac number, because 53531613901 - 2⁵ = 53531613869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53531613931) 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, 438783660 + ... + 438783781.

It is an arithmetic number, because the mean of its divisors is an integer number (13602295351).

Almost surely, 2^53531613901 is an apocalyptic number.

It is an amenable number.

53531613901 is a deficient number, since it is larger than the sum of its proper divisors (877567503).

53531613901 is an equidigital number, since it uses as much as digits as its factorization.

53531613901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877567502.

The product of its (nonzero) digits is 36450, while the sum is 37.

The spelling of 53531613901 in words is "fifty-three billion, five hundred thirty-one million, six hundred thirteen thousand, nine hundred one".