551353450203 has 6 divisors (see below), whose sum is σ = 796399428084. Its totient is φ = 367568966796.

The previous prime is 551353450189. The next prime is 551353450213. The reversal of 551353450203 is 302054353155.

551353450203 is a `hidden beast` number, since 5 + 51 + 3 + 534 + 50 + 20 + 3 = 666.

It is not a de Polignac number, because 551353450203 - 2⁵ = 551353450171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551353450213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30630747225 + ... + 30630747242.

It is an arithmetic number, because the mean of its divisors is an integer number (132733238014).

Almost surely, 2^551353450203 is an apocalyptic number.

551353450203 is a deficient number, since it is larger than the sum of its proper divisors (245045977881).

551353450203 is a wasteful number, since it uses less digits than its factorization.

551353450203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61261494473 (or 61261494470 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 551353450203 in words is "five hundred fifty-one billion, three hundred fifty-three million, four hundred fifty thousand, two hundred three".