551424520 has 16 divisors (see below), whose sum is σ = 1240705260. Its totient is φ = 220569792.

The previous prime is 551424499. The next prime is 551424521. The reversal of 551424520 is 25424155.

It can be written as a sum of positive squares in 2 ways, for example, as 536663556 + 14760964 = 23166^2 + 3842^2 .

It is not an unprimeable number, because it can be changed into a prime (551424521) 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, 6892767 + ... + 6892846.

Almost surely, 2^551424520 is an apocalyptic number.

It is an amenable number.

551424520 is an abundant number, since it is smaller than the sum of its proper divisors (689280740).

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

551424520 is a wasteful number, since it uses less digits than its factorization.

551424520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13785624 (or 13785620 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 551424520 is about 23482.4300275759. The cubic root of 551424520 is about 820.0280180789.

Adding to 551424520 its reverse (25424155), we get a palindrome (576848675).

The spelling of 551424520 in words is "five hundred fifty-one million, four hundred twenty-four thousand, five hundred twenty".