551669944 has 16 divisors (see below), whose sum is σ = 1182150000. Its totient is φ = 236429952.

The previous prime is 551669933. The next prime is 551669977. The reversal of 551669944 is 449966155.

It is a super-2 number, since 2×551669944² = 608679454225926272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4925569 + ... + 4925680.

It is an arithmetic number, because the mean of its divisors is an integer number (73884375).

Almost surely, 2^551669944 is an apocalyptic number.

It is an amenable number.

551669944 is an abundant number, since it is smaller than the sum of its proper divisors (630480056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551669944 is a wasteful number, since it uses less digits than its factorization.

551669944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9851262 (or 9851258 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

The square root of 551669944 is about 23487.6551405201. The cubic root of 551669944 is about 820.1496573960.

The spelling of 551669944 in words is "five hundred fifty-one million, six hundred sixty-nine thousand, nine hundred forty-four".