611521473 has 16 divisors (see below), whose sum is σ = 833763456. Its totient is φ = 398536320.

The previous prime is 611521451. The next prime is 611521487. The reversal of 611521473 is 374125116.

It is not a de Polignac number, because 611521473 - 2⁶ = 611521409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 611521473.

It is not an unprimeable number, because it can be changed into a prime (611521423) by changing a digit.

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, 37836 + ... + 51522.

It is an arithmetic number, because the mean of its divisors is an integer number (52110216).

Almost surely, 2^611521473 is an apocalyptic number.

It is an amenable number.

611521473 is a deficient number, since it is larger than the sum of its proper divisors (222241983).

611521473 is a wasteful number, since it uses less digits than its factorization.

611521473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14024.

The product of its digits is 5040, while the sum is 30.

The square root of 611521473 is about 24728.9602086299. The cubic root of 611521473 is about 848.7971327205.

Adding to 611521473 its reverse (374125116), we get a palindrome (985646589).

The spelling of 611521473 in words is "six hundred eleven million, five hundred twenty-one thousand, four hundred seventy-three".