505400555213331 has 16 divisors (see below), whose sum is σ = 696252053756160. Its totient is φ = 325920457247840.

The previous prime is 505400555213297. The next prime is 505400555213339. The reversal of 505400555213331 is 133312555004505.

It is a cyclic number.

It is not a de Polignac number, because 505400555213331 - 2³⁵ = 505366195474963 is a prime.

It is a super-2 number, since 2×505400555213331² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505400555213339) 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, 22384635501 + ... + 22384658078.

It is an arithmetic number, because the mean of its divisors is an integer number (43515753359760).

Almost surely, 2^{505400555213331} is an apocalyptic number.

505400555213331 is a deficient number, since it is larger than the sum of its proper divisors (190851498542829).

505400555213331 is a wasteful number, since it uses less digits than its factorization.

505400555213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44769293706.

The product of its (nonzero) digits is 675000, while the sum is 42.

The spelling of 505400555213331 in words is "five hundred five trillion, four hundred billion, five hundred fifty-five million, two hundred thirteen thousand, three hundred thirty-one".