551235461 has 4 divisors (see below), whose sum is σ = 629983392. Its totient is φ = 472487532.

The previous prime is 551235427. The next prime is 551235463. The reversal of 551235461 is 164532155.

551235461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 551235461 - 2¹⁴ = 551219077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551235463) 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, 39373955 + ... + 39373968.

It is an arithmetic number, because the mean of its divisors is an integer number (157495848).

Almost surely, 2^551235461 is an apocalyptic number.

It is an amenable number.

551235461 is a deficient number, since it is larger than the sum of its proper divisors (78747931).

551235461 is an equidigital number, since it uses as much as digits as its factorization.

551235461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78747930.

The product of its digits is 18000, while the sum is 32.

The square root of 551235461 is about 23478.4041408269. The cubic root of 551235461 is about 819.9342902928.

The spelling of 551235461 in words is "five hundred fifty-one million, two hundred thirty-five thousand, four hundred sixty-one".