551115439 has 8 divisors (see below), whose sum is σ = 630679968. Its totient is φ = 471759360.

The previous prime is 551115413. The next prime is 551115451. The reversal of 551115439 is 934511155.

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 551115439 - 2¹³ = 551107247 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 (551115239) 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, 46402 + ... + 57055.

It is an arithmetic number, because the mean of its divisors is an integer number (78834996).

Almost surely, 2^551115439 is an apocalyptic number.

551115439 is a deficient number, since it is larger than the sum of its proper divisors (79564529).

551115439 is a wasteful number, since it uses less digits than its factorization.

551115439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104225.

The product of its digits is 13500, while the sum is 34.

The square root of 551115439 is about 23475.8479932036. The cubic root of 551115439 is about 819.8747771303.

The spelling of 551115439 in words is "five hundred fifty-one million, one hundred fifteen thousand, four hundred thirty-nine".