551059406 has 4 divisors (see below), whose sum is σ = 826589112. Its totient is φ = 275529702.

The previous prime is 551059381. The next prime is 551059427. The reversal of 551059406 is 604950155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604950155 = 5 ⋅120990031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137764850 + ... + 137764853.

It is an arithmetic number, because the mean of its divisors is an integer number (206647278).

Almost surely, 2^551059406 is an apocalyptic number.

551059406 is a deficient number, since it is larger than the sum of its proper divisors (275529706).

551059406 is a wasteful number, since it uses less digits than its factorization.

551059406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275529705.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 551059406 is about 23474.6545448490. The cubic root of 551059406 is about 819.8469900902.

The spelling of 551059406 in words is "five hundred fifty-one million, fifty-nine thousand, four hundred six".