550261865553 has 8 divisors (see below), whose sum is σ = 750744871008. Its totient is φ = 358310051904.

The previous prime is 550261865539. The next prime is 550261865567. The reversal of 550261865553 is 355568162055.

It is an interprime number because it is at equal distance from previous prime (550261865539) and next prime (550261865567).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 550261865553 - 2⁴ = 550261865537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550261865496 and 550261865505.

It is not an unprimeable number, because it can be changed into a prime (550261865053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2132797800 + ... + 2132798057.

It is an arithmetic number, because the mean of its divisors is an integer number (93843108876).

Almost surely, 2^550261865553 is an apocalyptic number.

It is an amenable number.

550261865553 is a deficient number, since it is larger than the sum of its proper divisors (200483005455).

550261865553 is a wasteful number, since it uses less digits than its factorization.

550261865553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265595903.

The product of its (nonzero) digits is 5400000, while the sum is 51.

The spelling of 550261865553 in words is "five hundred fifty billion, two hundred sixty-one million, eight hundred sixty-five thousand, five hundred fifty-three".