505406240045 has 16 divisors (see below), whose sum is σ = 694206549120. Its totient is φ = 346025283264.

The previous prime is 505406240021. The next prime is 505406240051. The reversal of 505406240045 is 540042604505.

It is a cyclic number.

It is not a de Polignac number, because 505406240045 - 2³⁰ = 504332498221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 505406239987 and 505406240014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11206250 + ... + 11251259.

It is an arithmetic number, because the mean of its divisors is an integer number (43387909320).

Almost surely, 2^505406240045 is an apocalyptic number.

It is an amenable number.

505406240045 is a deficient number, since it is larger than the sum of its proper divisors (188800309075).

505406240045 is a wasteful number, since it uses less digits than its factorization.

505406240045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22458164.

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 505406240045 in words is "five hundred five billion, four hundred six million, two hundred forty thousand, forty-five".