5251161450203 has 4 divisors (see below), whose sum is σ = 5272082412408. Its totient is φ = 5230240488000.

The previous prime is 5251161450179. The next prime is 5251161450209. The reversal of 5251161450203 is 3020541611525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5251161450203 - 2¹⁰ = 5251161449179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5251161450209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10460480726 + ... + 10460481227.

It is an arithmetic number, because the mean of its divisors is an integer number (1318020603102).

Almost surely, 2^{5251161450203} is an apocalyptic number.

5251161450203 is a deficient number, since it is larger than the sum of its proper divisors (20920962205).

5251161450203 is a wasteful number, since it uses less digits than its factorization.

5251161450203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20920962204.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 5251161450203 in words is "five trillion, two hundred fifty-one billion, one hundred sixty-one million, four hundred fifty thousand, two hundred three".