551028047 has 4 divisors (see below), whose sum is σ = 562752096. Its totient is φ = 539304000.

The previous prime is 551028041. The next prime is 551028083. The reversal of 551028047 is 740820155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740820155 = 5 ⋅148164031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551028047 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 (551028041) 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, 5861954 + ... + 5862047.

It is an arithmetic number, because the mean of its divisors is an integer number (140688024).

Almost surely, 2^551028047 is an apocalyptic number.

551028047 is a deficient number, since it is larger than the sum of its proper divisors (11724049).

551028047 is a wasteful number, since it uses less digits than its factorization.

551028047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11724048.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 551028047 is about 23473.9866021944. The cubic root of 551028047 is about 819.8314381859.

The spelling of 551028047 in words is "five hundred fifty-one million, twenty-eight thousand, forty-seven".