551255535 has 24 divisors (see below), whose sum is σ = 956130864. Its totient is φ = 293811840.

The previous prime is 551255503. The next prime is 551255543. The reversal of 551255535 is 535552155.

551255535 is a `hidden beast` number, since 551 + 2 + 55 + 53 + 5 = 666.

It is not a de Polignac number, because 551255535 - 2⁵ = 551255503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551255535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90795 + ... + 96675.

It is an arithmetic number, because the mean of its divisors is an integer number (39838786).

Almost surely, 2^551255535 is an apocalyptic number.

551255535 is a deficient number, since it is larger than the sum of its proper divisors (404875329).

551255535 is a wasteful number, since it uses less digits than its factorization.

551255535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7975 (or 7972 counting only the distinct ones).

The product of its digits is 93750, while the sum is 36.

The square root of 551255535 is about 23478.8316361782. The cubic root of 551255535 is about 819.9442431848.

The spelling of 551255535 in words is "five hundred fifty-one million, two hundred fifty-five thousand, five hundred thirty-five".