1054555399 has 4 divisors (see below), whose sum is σ = 1054689664. Its totient is φ = 1054421136.

The previous prime is 1054555367. The next prime is 1054555429. The reversal of 1054555399 is 9935554501.

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

It is a cyclic number.

It is not a de Polignac number, because 1054555399 - 2⁵ = 1054555367 is a prime.

It is a super-3 number, since 3×1054555399³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054555199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54567 + ... + 71320.

It is an arithmetic number, because the mean of its divisors is an integer number (263672416).

Almost surely, 2^1054555399 is an apocalyptic number.

1054555399 is a deficient number, since it is larger than the sum of its proper divisors (134265).

1054555399 is an equidigital number, since it uses as much as digits as its factorization.

1054555399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134264.

The product of its (nonzero) digits is 607500, while the sum is 46.

The square root of 1054555399 is about 32473.9187502833. The cubic root of 1054555399 is about 1017.8641064005.

The spelling of 1054555399 in words is "one billion, fifty-four million, five hundred fifty-five thousand, three hundred ninety-nine".