555040999 has 4 divisors (see below), whose sum is σ = 557858664. Its totient is φ = 552223336.

The previous prime is 555040951. The next prime is 555041017. The reversal of 555040999 is 999040555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555040999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555040909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408537 + ... + 1408930.

It is an arithmetic number, because the mean of its divisors is an integer number (139464666).

Almost surely, 2^555040999 is an apocalyptic number.

555040999 is a deficient number, since it is larger than the sum of its proper divisors (2817665).

555040999 is a wasteful number, since it uses less digits than its factorization.

555040999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817664.

The product of its (nonzero) digits is 364500, while the sum is 46.

The square root of 555040999 is about 23559.3081180242. The cubic root of 555040999 is about 821.8168119281.

The spelling of 555040999 in words is "five hundred fifty-five million, forty thousand, nine hundred ninety-nine".