550513432 has 24 divisors (see below), whose sum is σ = 1200738060. Its totient is φ = 235934160.

The previous prime is 550513373. The next prime is 550513433. The reversal of 550513432 is 234315055.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 550513432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550513433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 701794 + ... + 702577.

Almost surely, 2^550513432 is an apocalyptic number.

It is an amenable number.

550513432 is an abundant number, since it is smaller than the sum of its proper divisors (650224628).

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

550513432 is a wasteful number, since it uses less digits than its factorization.

550513432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404391 (or 1404380 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 550513432 is about 23463.0226526763. The cubic root of 550513432 is about 819.5761402537.

Adding to 550513432 its reverse (234315055), we get a palindrome (784828487).

The spelling of 550513432 in words is "five hundred fifty million, five hundred thirteen thousand, four hundred thirty-two".