550561615 has 8 divisors (see below), whose sum is σ = 673139808. Its totient is φ = 432138720.

The previous prime is 550561597. The next prime is 550561633. The reversal of 550561615 is 516165055.

550561615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (550561597) and next prime (550561633).

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

It is not a de Polignac number, because 550561615 - 2⁹ = 550561103 is a prime.

It is a super-2 number, since 2×550561615² = 606236183822816450, which contains 22 as substring.

It is a Duffinian number.

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, 1038531 + ... + 1039060.

It is an arithmetic number, because the mean of its divisors is an integer number (84142476).

Almost surely, 2^550561615 is an apocalyptic number.

550561615 is a deficient number, since it is larger than the sum of its proper divisors (122578193).

550561615 is a wasteful number, since it uses less digits than its factorization.

550561615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077649.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 550561615 is about 23464.0494160748. The cubic root of 550561615 is about 819.6000503485.

The spelling of 550561615 in words is "five hundred fifty million, five hundred sixty-one thousand, six hundred fifteen".