550333136656551 has 4 divisors (see below), whose sum is σ = 733777515542072. Its totient is φ = 366888757771032.

The previous prime is 550333136656543. The next prime is 550333136656559. The reversal of 550333136656551 is 155656631333055.

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

It is an interprime number because it is at equal distance from previous prime (550333136656543) and next prime (550333136656559).

It is not a de Polignac number, because 550333136656551 - 2³ = 550333136656543 is a prime.

It is a super-2 number, since 2×550333136656551² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550333136656491 and 550333136656500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550333136656559) 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, 91722189442756 + ... + 91722189442761.

It is an arithmetic number, because the mean of its divisors is an integer number (183444378885518).

Almost surely, 2^{550333136656551} is an apocalyptic number.

550333136656551 is a deficient number, since it is larger than the sum of its proper divisors (183444378885521).

550333136656551 is a wasteful number, since it uses less digits than its factorization.

550333136656551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183444378885520.

The product of its (nonzero) digits is 54675000, while the sum is 57.

The spelling of 550333136656551 in words is "five hundred fifty trillion, three hundred thirty-three billion, one hundred thirty-six million, six hundred fifty-six thousand, five hundred fifty-one".