551242430 has 16 divisors (see below), whose sum is σ = 1001341440. Its totient is φ = 218473632.

The previous prime is 551242423. The next prime is 551242463. The reversal of 551242430 is 34242155.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 551242430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251774 + ... + 253953.

It is an arithmetic number, because the mean of its divisors is an integer number (62583840).

Almost surely, 2^551242430 is an apocalyptic number.

551242430 is a deficient number, since it is larger than the sum of its proper divisors (450099010).

551242430 is a wasteful number, since it uses less digits than its factorization.

551242430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505843.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 551242430 is about 23478.5525533411. The cubic root of 551242430 is about 819.9377456208.

Adding to 551242430 its reverse (34242155), we get a palindrome (585484585).

The spelling of 551242430 in words is "five hundred fifty-one million, two hundred forty-two thousand, four hundred thirty".