611050505 has 16 divisors (see below), whose sum is σ = 797492304. Its totient is φ = 446764800.

The previous prime is 611050493. The next prime is 611050537. The reversal of 611050505 is 505050116.

It can be written as a sum of positive squares in 8 ways, for example, as 17007376 + 594043129 = 4124^2 + 24373^2 .

It is not a de Polignac number, because 611050505 - 2⁶ = 611050441 is a prime.

It is a super-3 number, since 3×611050505³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39974 + ... + 53103.

It is an arithmetic number, because the mean of its divisors is an integer number (49843269).

Almost surely, 2^611050505 is an apocalyptic number.

611050505 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

611050505 is a deficient number, since it is larger than the sum of its proper divisors (186441799).

611050505 is a wasteful number, since it uses less digits than its factorization.

611050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93196.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 611050505 is about 24719.4357743052. The cubic root of 611050505 is about 848.5791741943.

The spelling of 611050505 in words is "six hundred eleven million, fifty thousand, five hundred five".