611049601 has 4 divisors (see below), whose sum is σ = 611117104. Its totient is φ = 610982100.

The previous prime is 611049589. The next prime is 611049611. The reversal of 611049601 is 106940116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 611049601 - 2²⁵ = 577495169 is a prime.

It is a super-2 number, since 2×611049601² = 746763229764518402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 611049601.

It is not an unprimeable number, because it can be changed into a prime (611049611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17595 + ... + 39136.

It is an arithmetic number, because the mean of its divisors is an integer number (152779276).

Almost surely, 2^611049601 is an apocalyptic number.

It is an amenable number.

611049601 is a deficient number, since it is larger than the sum of its proper divisors (67503).

611049601 is a wasteful number, since it uses less digits than its factorization.

611049601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67502.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 611049601 is about 24719.4174890914. The cubic root of 611049601 is about 848.5787557259.

Adding to 611049601 its reverse (106940116), we get a palindrome (717989717).

The spelling of 611049601 in words is "six hundred eleven million, forty-nine thousand, six hundred one".