550561110501 has 16 divisors (see below), whose sum is σ = 766038075264. Its totient is φ = 351064110144.

The previous prime is 550561110497. The next prime is 550561110503. The reversal of 550561110501 is 105011165055.

It is not a de Polignac number, because 550561110501 - 2² = 550561110497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550561110503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1189755 + ... + 1586391.

It is an arithmetic number, because the mean of its divisors is an integer number (47877379704).

Almost surely, 2^550561110501 is an apocalyptic number.

It is an amenable number.

550561110501 is a deficient number, since it is larger than the sum of its proper divisors (215476964763).

550561110501 is a wasteful number, since it uses less digits than its factorization.

550561110501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416780.

The product of its (nonzero) digits is 3750, while the sum is 30.

Adding to 550561110501 its reverse (105011165055), we get a palindrome (655572275556).

The spelling of 550561110501 in words is "five hundred fifty billion, five hundred sixty-one million, one hundred ten thousand, five hundred one".