53251367607901 has 4 divisors (see below), whose sum is σ = 53338237702492. Its totient is φ = 53164497513312.

The previous prime is 53251367607839. The next prime is 53251367607931. The reversal of 53251367607901 is 10970676315235.

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 11926655343001 + 41324712264900 = 3453499^2 + 6428430^2 .

It is a cyclic number.

It is not a de Polignac number, because 53251367607901 - 2¹¹ = 53251367605853 is a prime.

It is a super-2 number, since 2×53251367607901² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53251367607931) 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, 43435046376 + ... + 43435047601.

It is an arithmetic number, because the mean of its divisors is an integer number (13334559425623).

Almost surely, 2^{53251367607901} is an apocalyptic number.

53251367607901 is the 3900600-th centered heptagonal number.

It is an amenable number.

53251367607901 is a deficient number, since it is larger than the sum of its proper divisors (86870094591).

53251367607901 is an equidigital number, since it uses as much as digits as its factorization.

53251367607901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86870094590.

The product of its (nonzero) digits is 7144200, while the sum is 55.

The spelling of 53251367607901 in words is "fifty-three trillion, two hundred fifty-one billion, three hundred sixty-seven million, six hundred seven thousand, nine hundred one".