551432040 has 64 divisors (see below), whose sum is σ = 1656322560. Its totient is φ = 146868480.

The previous prime is 551432029. The next prime is 551432047. The reversal of 551432040 is 40234155.

551432040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 551432040.

It is not an unprimeable number, because it can be changed into a prime (551432047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116602 + ... + 121238.

It is an arithmetic number, because the mean of its divisors is an integer number (25880040).

Almost surely, 2^551432040 is an apocalyptic number.

It is an amenable number.

551432040 is an abundant number, since it is smaller than the sum of its proper divisors (1104890520).

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

551432040 is a wasteful number, since it uses less digits than its factorization.

551432040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642 (or 5638 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 551432040 is about 23482.5901467449. The cubic root of 551432040 is about 820.0317457470.

Adding to 551432040 its reverse (40234155), we get a palindrome (591666195).

The spelling of 551432040 in words is "five hundred fifty-one million, four hundred thirty-two thousand, forty".