551786049 has 24 divisors (see below), whose sum is σ = 850484960. Its totient is φ = 343714752.

The previous prime is 551786041. The next prime is 551786057. The reversal of 551786049 is 940687155.

It is an interprime number because it is at equal distance from previous prime (551786041) and next prime (551786057).

It is not a de Polignac number, because 551786049 - 2³ = 551786041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551785995 and 551786013.

It is not an unprimeable number, because it can be changed into a prime (551786041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9619 + ... + 34584.

Almost surely, 2^551786049 is an apocalyptic number.

It is an amenable number.

551786049 is a deficient number, since it is larger than the sum of its proper divisors (298698911).

551786049 is a wasteful number, since it uses less digits than its factorization.

551786049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44301 (or 44298 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 551786049 is about 23490.1266280112. The cubic root of 551786049 is about 820.2071898617.

The spelling of 551786049 in words is "five hundred fifty-one million, seven hundred eighty-six thousand, forty-nine".