551474555 has 8 divisors (see below), whose sum is σ = 661896144. Its totient is φ = 441095200.

The previous prime is 551474549. The next prime is 551474569. The reversal of 551474555 is 555474155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-551474555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41645 + ... + 53265.

It is an arithmetic number, because the mean of its divisors is an integer number (82737018).

Almost surely, 2^551474555 is an apocalyptic number.

551474555 is a deficient number, since it is larger than the sum of its proper divisors (110421589).

551474555 is a wasteful number, since it uses less digits than its factorization.

551474555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21117.

The product of its digits is 350000, while the sum is 41.

The square root of 551474555 is about 23483.4953744114. The cubic root of 551474555 is about 820.0528198179.

The spelling of 551474555 in words is "five hundred fifty-one million, four hundred seventy-four thousand, five hundred fifty-five".