551511040 has 44 divisors (see below), whose sum is σ = 1322992476. Its totient is φ = 220602368.

The previous prime is 551510963. The next prime is 551511047. The reversal of 551511040 is 40115155.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 172975104 + 378535936 = 13152^2 + 19456^2 .

It is not an unprimeable number, because it can be changed into a prime (551511047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48739 + ... + 58978.

Almost surely, 2^551511040 is an apocalyptic number.

It is an amenable number.

551511040 is an abundant number, since it is smaller than the sum of its proper divisors (771481436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551511040 is a wasteful number, since it uses less digits than its factorization.

551511040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107742 (or 107724 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 551511040 is about 23484.2721837403. The cubic root of 551511040 is about 820.0709040414.

Adding to 551511040 its reverse (40115155), we get a palindrome (591626195).

The spelling of 551511040 in words is "five hundred fifty-one million, five hundred eleven thousand, forty".