551797156 has 12 divisors (see below), whose sum is σ = 988102192. Its totient is φ = 269482248.

The previous prime is 551797153. The next prime is 551797157. The reversal of 551797156 is 651797155.

It is not an unprimeable number, because it can be changed into a prime (551797153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603890 + ... + 1604233.

Almost surely, 2^551797156 is an apocalyptic number.

It is an amenable number.

551797156 is a deficient number, since it is larger than the sum of its proper divisors (436305036).

551797156 is a wasteful number, since it uses less digits than its factorization.

551797156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208170 (or 3208168 counting only the distinct ones).

The product of its digits is 330750, while the sum is 46.

The square root of 551797156 is about 23490.3630453001. The cubic root of 551797156 is about 820.2126931905.

Subtracting 551797156 from its reverse (651797155), we obtain a palindrome (99999999).

The spelling of 551797156 in words is "five hundred fifty-one million, seven hundred ninety-seven thousand, one hundred fifty-six".