551165738 has 16 divisors (see below), whose sum is σ = 877785984. Its totient is φ = 258659520.

The previous prime is 551165731. The next prime is 551165743. The reversal of 551165738 is 837561155.

It is a junction number, because it is equal to n+sod(n) for n = 551165695 and 551165704.

It is not an unprimeable number, because it can be changed into a prime (551165731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9608 + ... + 34563.

It is an arithmetic number, because the mean of its divisors is an integer number (54861624).

Almost surely, 2^551165738 is an apocalyptic number.

551165738 is a deficient number, since it is larger than the sum of its proper divisors (326620246).

551165738 is a wasteful number, since it uses less digits than its factorization.

551165738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44557.

The product of its digits is 126000, while the sum is 41.

The square root of 551165738 is about 23476.9192612659. The cubic root of 551165738 is about 819.8997190475.

The spelling of 551165738 in words is "five hundred fifty-one million, one hundred sixty-five thousand, seven hundred thirty-eight".