505090955455 has 16 divisors (see below), whose sum is σ = 607447322784. Its totient is φ = 403181107200.

The previous prime is 505090955401. The next prime is 505090955461. The reversal of 505090955455 is 554559090505.

It is not a de Polignac number, because 505090955455 - 2²¹ = 505088858303 is a prime.

It is a Duffinian number.

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, 9431755 + ... + 9485155.

It is an arithmetic number, because the mean of its divisors is an integer number (37965457674).

Almost surely, 2^505090955455 is an apocalyptic number.

505090955455 is a deficient number, since it is larger than the sum of its proper divisors (102356367329).

505090955455 is a wasteful number, since it uses less digits than its factorization.

505090955455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57546.

The product of its (nonzero) digits is 5062500, while the sum is 52.

The spelling of 505090955455 in words is "five hundred five billion, ninety million, nine hundred fifty-five thousand, four hundred fifty-five".