551447842 has 16 divisors (see below), whose sum is σ = 903108672. Its totient is φ = 250452720.

The previous prime is 551447833. The next prime is 551447863. The reversal of 551447842 is 248744155.

It is a junction number, because it is equal to n+sod(n) for n = 551447795 and 551447804.

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, 19048 + ... + 38284.

It is an arithmetic number, because the mean of its divisors is an integer number (56444292).

Almost surely, 2^551447842 is an apocalyptic number.

551447842 is a deficient number, since it is larger than the sum of its proper divisors (351660830).

551447842 is a wasteful number, since it uses less digits than its factorization.

551447842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20553.

The product of its digits is 179200, while the sum is 40.

The square root of 551447842 is about 23482.9266063666. The cubic root of 551447842 is about 820.0395786964.

The spelling of 551447842 in words is "five hundred fifty-one million, four hundred forty-seven thousand, eight hundred forty-two".