551200431 has 12 divisors (see below), whose sum is σ = 775651992. Its totient is φ = 348125904.

The previous prime is 551200417. The next prime is 551200439. The reversal of 551200431 is 134002155.

It is not a de Polignac number, because 551200431 - 2⁹ = 551199919 is a prime.

It is a super-2 number, since 2×551200431² = 607643830269171522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 551200398 and 551200407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551200439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253396 + ... + 255561.

It is an arithmetic number, because the mean of its divisors is an integer number (64637666).

Almost surely, 2^551200431 is an apocalyptic number.

551200431 is a deficient number, since it is larger than the sum of its proper divisors (224451561).

551200431 is a wasteful number, since it uses less digits than its factorization.

551200431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508998 (or 508979 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 551200431 is about 23477.6581242678. The cubic root of 551200431 is about 819.9169214860.

Adding to 551200431 its reverse (134002155), we get a palindrome (685202586).

The spelling of 551200431 in words is "five hundred fifty-one million, two hundred thousand, four hundred thirty-one".