505455005554 has 8 divisors (see below), whose sum is σ = 758186171820. Its totient is φ = 252726281616.

The previous prime is 505455005519. The next prime is 505455005563. The reversal of 505455005554 is 455500554505.

It can be written as a sum of positive squares in 2 ways, for example, as 464337304929 + 41117700625 = 681423^2 + 202775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 505455005554.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49552 + ... + 1006660.

Almost surely, 2^505455005554 is an apocalyptic number.

505455005554 is a deficient number, since it is larger than the sum of its proper divisors (252731166266).

505455005554 is a wasteful number, since it uses less digits than its factorization.

505455005554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221164.

The product of its (nonzero) digits is 1250000, while the sum is 43.

The spelling of 505455005554 in words is "five hundred five billion, four hundred fifty-five million, five thousand, five hundred fifty-four".