505561101436 has 24 divisors (see below), whose sum is σ = 886993735040. Its totient is φ = 252135072000.

The previous prime is 505561101433. The next prime is 505561101497. The reversal of 505561101436 is 634101165505.

It is a junction number, because it is equal to n+sod(n) for n = 505561101395 and 505561101404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505561101433) 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, 2620981 + ... + 2807251.

Almost surely, 2^505561101436 is an apocalyptic number.

It is an amenable number.

505561101436 is a deficient number, since it is larger than the sum of its proper divisors (381432633604).

505561101436 is a wasteful number, since it uses less digits than its factorization.

505561101436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188005 (or 188003 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 505561101436 in words is "five hundred five billion, five hundred sixty-one million, one hundred one thousand, four hundred thirty-six".