550561265 has 8 divisors (see below), whose sum is σ = 667088448. Its totient is φ = 436172400.

The previous prime is 550561261. The next prime is 550561279. The reversal of 550561265 is 562165055.

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

It is not a de Polignac number, because 550561265 - 2² = 550561261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550561261) 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, 534011 + ... + 535040.

It is an arithmetic number, because the mean of its divisors is an integer number (83386056).

Almost surely, 2^550561265 is an apocalyptic number.

It is an amenable number.

550561265 is a deficient number, since it is larger than the sum of its proper divisors (116527183).

550561265 is a wasteful number, since it uses less digits than its factorization.

550561265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069159.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 550561265 is about 23464.0419578554. The cubic root of 550561265 is about 819.5998766713.

The spelling of 550561265 in words is "five hundred fifty million, five hundred sixty-one thousand, two hundred sixty-five".