551015165 has 8 divisors (see below), whose sum is σ = 667285080. Its totient is φ = 436767552.

The previous prime is 551015159. The next prime is 551015191. The reversal of 551015165 is 561510155.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59151481 + 491863684 = 7691^2 + 22178^2 .

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 551015165 - 2⁴ = 551015149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504974 + ... + 506063.

It is an arithmetic number, because the mean of its divisors is an integer number (83410635).

Almost surely, 2^551015165 is an apocalyptic number.

It is an amenable number.

551015165 is a deficient number, since it is larger than the sum of its proper divisors (116269915).

551015165 is a wasteful number, since it uses less digits than its factorization.

551015165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011151.

The product of its (nonzero) digits is 3750, while the sum is 29.

The square root of 551015165 is about 23473.7122117487. The cubic root of 551015165 is about 819.8250494301.

The spelling of 551015165 in words is "five hundred fifty-one million, fifteen thousand, one hundred sixty-five".