551404522 has 4 divisors (see below), whose sum is σ = 827106786. Its totient is φ = 275702260.

The previous prime is 551404499. The next prime is 551404541. The reversal of 551404522 is 225404155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 548449561 + 2954961 = 23419^2 + 1719^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137851129 + ... + 137851132.

Almost surely, 2^551404522 is an apocalyptic number.

551404522 is a deficient number, since it is larger than the sum of its proper divisors (275702264).

551404522 is a wasteful number, since it uses less digits than its factorization.

551404522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275702263.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 551404522 is about 23482.0042159949. The cubic root of 551404522 is about 820.0181048947.

Adding to 551404522 its reverse (225404155), we get a palindrome (776808677).

The spelling of 551404522 in words is "five hundred fifty-one million, four hundred four thousand, five hundred twenty-two".