505122404553 has 12 divisors (see below), whose sum is σ = 785745962820. Its totient is φ = 310844556576.

The previous prime is 505122404513. The next prime is 505122404573. The reversal of 505122404553 is 355404221505.

505122404553 is a `hidden beast` number, since 50 + 5 + 12 + 2 + 40 + 4 + 553 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24607255689 + 480515148864 = 156867^2 + 693192^2 .

It is not a de Polignac number, because 505122404553 - 2¹⁰ = 505122403529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505122404513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2158642638 + ... + 2158642871.

It is an arithmetic number, because the mean of its divisors is an integer number (65478830235).

Almost surely, 2^505122404553 is an apocalyptic number.

It is an amenable number.

505122404553 is a deficient number, since it is larger than the sum of its proper divisors (280623558267).

505122404553 is a wasteful number, since it uses less digits than its factorization.

505122404553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317285528 (or 4317285525 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 505122404553 in words is "five hundred five billion, one hundred twenty-two million, four hundred four thousand, five hundred fifty-three".