52361661401 has 4 divisors (see below), whose sum is σ = 59841898752. Its totient is φ = 44881424052.

The previous prime is 52361661397. The next prime is 52361661449. The reversal of 52361661401 is 10416616325.

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 not a de Polignac number, because 52361661401 - 2² = 52361661397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52361661491) 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, 3740118665 + ... + 3740118678.

It is an arithmetic number, because the mean of its divisors is an integer number (14960474688).

Almost surely, 2^52361661401 is an apocalyptic number.

It is an amenable number.

52361661401 is a deficient number, since it is larger than the sum of its proper divisors (7480237351).

52361661401 is an equidigital number, since it uses as much as digits as its factorization.

52361661401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480237350.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 52361661401 in words is "fifty-two billion, three hundred sixty-one million, six hundred sixty-one thousand, four hundred one".