551420245 has 8 divisors (see below), whose sum is σ = 700628184. Its totient is φ = 415186944.

The previous prime is 551420197. The next prime is 551420249. The reversal of 551420245 is 542024155.

It can be written as a sum of positive squares in 4 ways, for example, as 47238129 + 504182116 = 6873^2 + 22454^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551420245 - 2¹⁵ = 551387477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551420249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3243564 + ... + 3243733.

It is an arithmetic number, because the mean of its divisors is an integer number (87578523).

Almost surely, 2^551420245 is an apocalyptic number.

It is an amenable number.

551420245 is a deficient number, since it is larger than the sum of its proper divisors (149207939).

551420245 is a wasteful number, since it uses less digits than its factorization.

551420245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6487319.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 551420245 is about 23482.3390018967. The cubic root of 551420245 is about 820.0258989440.

The spelling of 551420245 in words is "five hundred fifty-one million, four hundred twenty thousand, two hundred forty-five".