551506466 has 48 divisors (see below), whose sum is σ = 1008697536. Its totient is φ = 225064224.

The previous prime is 551506451. The next prime is 551506513. The reversal of 551506466 is 664605155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 691580 + ... + 692376.

It is an arithmetic number, because the mean of its divisors is an integer number (21014532).

Almost surely, 2^551506466 is an apocalyptic number.

551506466 is a deficient number, since it is larger than the sum of its proper divisors (457191070).

551506466 is a wasteful number, since it uses less digits than its factorization.

551506466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 551506466 is about 23484.1747992132. The cubic root of 551506466 is about 820.0686369277.

It can be divided in two parts, 55150 and 6466, that added together give a palindrome (61616).

The spelling of 551506466 in words is "five hundred fifty-one million, five hundred six thousand, four hundred sixty-six".