551222541 has 6 divisors (see below), whose sum is σ = 796210350. Its totient is φ = 367481688.

The previous prime is 551222537. The next prime is 551222543. The reversal of 551222541 is 145222155.

It can be written as a sum of positive squares in only one way, i.e., 398601225 + 152621316 = 19965^2 + 12354^2 .

It is not a de Polignac number, because 551222541 - 2² = 551222537 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551222543) 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, 30623466 + ... + 30623483.

It is an arithmetic number, because the mean of its divisors is an integer number (132701725).

Almost surely, 2^551222541 is an apocalyptic number.

It is an amenable number.

551222541 is a deficient number, since it is larger than the sum of its proper divisors (244987809).

551222541 is a wasteful number, since it uses less digits than its factorization.

551222541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61246955 (or 61246952 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 551222541 is about 23478.1289927456. The cubic root of 551222541 is about 819.9278842984.

Adding to 551222541 its reverse (145222155), we get a palindrome (696444696).

The spelling of 551222541 in words is "five hundred fifty-one million, two hundred twenty-two thousand, five hundred forty-one".