506995272554 has 4 divisors (see below), whose sum is σ = 760492908834. Its totient is φ = 253497636276.

The previous prime is 506995272533. The next prime is 506995272599. The reversal of 506995272554 is 455272599605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455272599605 = 5 ⋅91054519921.

It can be written as a sum of positive squares in only one way, i.e., 421880127529 + 85115145025 = 649523^2 + 291745^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 506995272493 and 506995272502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126748818137 + ... + 126748818140.

Almost surely, 2^506995272554 is an apocalyptic number.

506995272554 is a deficient number, since it is larger than the sum of its proper divisors (253497636280).

506995272554 is a wasteful number, since it uses less digits than its factorization.

506995272554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253497636279.

The product of its (nonzero) digits is 34020000, while the sum is 59.

The spelling of 506995272554 in words is "five hundred six billion, nine hundred ninety-five million, two hundred seventy-two thousand, five hundred fifty-four".