551801032 has 8 divisors (see below), whose sum is σ = 1034626950. Its totient is φ = 275900512.

The previous prime is 551800969. The next prime is 551801039. The reversal of 551801032 is 230108155.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 364275396 + 187525636 = 19086^2 + 13694^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 551800988 and 551801006.

It is not an unprimeable number, because it can be changed into a prime (551801039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34487557 + ... + 34487572.

Almost surely, 2^551801032 is an apocalyptic number.

It is an amenable number.

551801032 is a deficient number, since it is larger than the sum of its proper divisors (482825918).

551801032 is a wasteful number, since it uses less digits than its factorization.

551801032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68975135 (or 68975131 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 551801032 is about 23490.4455470730. The cubic root of 551801032 is about 820.2146136649.

Adding to 551801032 its reverse (230108155), we get a palindrome (781909187).

The spelling of 551801032 in words is "five hundred fifty-one million, eight hundred one thousand, thirty-two".