555025081 has 4 divisors (see below), whose sum is σ = 597719332. Its totient is φ = 512330832.

The previous prime is 555025043. The next prime is 555025091. The reversal of 555025081 is 180520555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180520555 = 5 ⋅36104111.

It can be written as a sum of positive squares in 2 ways, for example, as 67322025 + 487703056 = 8205^2 + 22084^2 .

It is not a de Polignac number, because 555025081 - 2²³ = 546636473 is a prime.

It is a super-2 number, since 2×555025081² = 616105681078113122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555025091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21347106 + ... + 21347131.

It is an arithmetic number, because the mean of its divisors is an integer number (149429833).

Almost surely, 2^555025081 is an apocalyptic number.

It is an amenable number.

555025081 is a deficient number, since it is larger than the sum of its proper divisors (42694251).

555025081 is a wasteful number, since it uses less digits than its factorization.

555025081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42694250.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 555025081 is about 23558.9702873449. The cubic root of 555025081 is about 821.8089555685.

The spelling of 555025081 in words is "five hundred fifty-five million, twenty-five thousand, eighty-one".