61004425601 has 32 divisors (see below), whose sum is σ = 71137751040. Its totient is φ = 51237403776.

The previous prime is 61004425589. The next prime is 61004425619. The reversal of 61004425601 is 10652440016.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61004425601 is a prime.

It is a super-2 number, since 2×61004425601² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61004425621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55609685 + ... + 55610781.

It is an arithmetic number, because the mean of its divisors is an integer number (2223054720).

Almost surely, 2^61004425601 is an apocalyptic number.

It is an amenable number.

61004425601 is a deficient number, since it is larger than the sum of its proper divisors (10133325439).

61004425601 is a wasteful number, since it uses less digits than its factorization.

61004425601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 61004425601 its reverse (10652440016), we get a palindrome (71656865617).

The spelling of 61004425601 in words is "sixty-one billion, four million, four hundred twenty-five thousand, six hundred one".