5601611501 has 4 divisors (see below), whose sum is σ = 5632905600. Its totient is φ = 5570317404.

The previous prime is 5601611473. The next prime is 5601611513. The reversal of 5601611501 is 1051161065.

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.

It is a cyclic number.

It is not a de Polignac number, because 5601611501 - 2⁶ = 5601611437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5601611531) 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, 15646781 + ... + 15647138.

It is an arithmetic number, because the mean of its divisors is an integer number (1408226400).

Almost surely, 2^5601611501 is an apocalyptic number.

It is an amenable number.

5601611501 is a deficient number, since it is larger than the sum of its proper divisors (31294099).

5601611501 is a wasteful number, since it uses less digits than its factorization.

5601611501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31294098.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 5601611501 is about 74843.9142549346. The cubic root of 5601611501 is about 1775.9783274086.

Adding to 5601611501 its reverse (1051161065), we get a palindrome (6652772566).

The spelling of 5601611501 in words is "five billion, six hundred one million, six hundred eleven thousand, five hundred one".