505100061061 has 4 divisors (see below), whose sum is σ = 511493732800. Its totient is φ = 498706389324.

The previous prime is 505100061029. The next prime is 505100061077. The reversal of 505100061061 is 160160001505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505100061061 - 2⁵ = 505100061029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505100061001) 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, 3196835751 + ... + 3196835908.

It is an arithmetic number, because the mean of its divisors is an integer number (127873433200).

Almost surely, 2^505100061061 is an apocalyptic number.

It is an amenable number.

505100061061 is a deficient number, since it is larger than the sum of its proper divisors (6393671739).

505100061061 is an equidigital number, since it uses as much as digits as its factorization.

505100061061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6393671738.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 505100061061 its reverse (160160001505), we get a palindrome (665260062566).

The spelling of 505100061061 in words is "five hundred five billion, one hundred million, sixty-one thousand, sixty-one".